"That's not fair! He's allowed everything and I'm allowed nothing!" — and the door slams. The parent is torn: is the child manipulating, genuinely hurt, or — most uncomfortably — right? Research on children's sense of fairness gives an unexpected answer: the demand that "everyone gets the same" is the earliest and strongest form of that sense, while understanding that different does not mean unfair comes later — and only if the difference is explained to them. Below is one scene taken apart: what to find out before acting, what to choose between, what each choice leads to, and what is known about it.
The scene
Nine in the evening. The thirteen-year-old brother is allowed out until ten; the nine-year-old sister is sent to bed. "That's not fair! He's allowed everything and I'm allowed nothing! You love him more!" — and she refuses to go to her room.
One and the same scene is several different situations. They differ not in loudness but in whether the difference is justified, whether it has been explained, and what the shouting is really about — the rule or love. The scene is an illustration, not a real family.
What to find out before acting
- Is she demanding equality or fairness? Until seven or eight, "fair" means "the same". Later a child can accept difference — if she understands why. The study below shows that most children aged 11–13 do not consider different treatment unfair when they can see the reason.
- Has the difference been explained — or only announced? "He is thirteen, you are nine; at thirteen you will be allowed too" is an explanation. "Because I said so" is not.
- Is the difference actually justified? Sometimes the child is right: the younger one gets more control and less freedom by inertia — the rules are left over from when she was six.
- Is the shouting about the rule or about love? "You love him more" is not an argument in the dispute but a separate signal, and it deserves to be heard separately from the question of bedtime.
- How often, and where? "Not fair" only at home and only about the brother is one thing. About everything and everywhere, including losing a game ("that's cheating!"), is another; on losing — in the case on cheating at games.
The forks: what you can do and what each one costs
If the difference is justified by age or needs, but has not been explained
Action. Explain once, concretely and with a date: "the rule is about age: at nine, bed at nine; at thirteen, out until ten; you will get the same then." Acknowledge the feeling without arguing with it: it hurts — yes. Show that the rule is not about love: recall together what the brother was allowed at nine. Do not get drawn into a debate at nine in the evening — a short answer now, the conversation tomorrow if she wants it.
Cost. Keeping your word at thirteen. And accepting that the explanation does not cancel the hurt — it only makes it bearable.
What to watch. Whether "not fair" repeats about the same thing or moves on to other topics. The first means the explanation was not heard; the second, that the question is closed.
If the child is right — the difference has stayed by inertia
Action. Admit it out loud: "you're right, this rule is from when you were little." Revise it together with her — and tell the older one, so he does not decide he has been bypassed. A child who sees that a complaint with substance changes a rule learns to argue with words rather than with the door.
Cost. Admitting a mistake to a nine-year-old — and possibly hearing the older one's own "not fair".
What to watch. Whether the shouting goes away once there is a legitimate way to get a rule reviewed. As a rule, it goes quickly.
If "not fair" is about everything, daily, and works as a lever
Action. Do not buy quiet with a concession: if shouting cancels a rule, shouting becomes a tool. Separate: "complaint accepted, we'll discuss it in the morning; now — bed" — and in the morning actually discuss it. Set up a regular time when grievances are taken seriously — once a week at the table, not in the middle of a row. And check the signal about love: if "you love him more" is constant, give her one-to-one time without the brother — not as a reward for shouting, but on a schedule.
Cost. A few loud evenings until "not now, we'll discuss it in the morning" becomes predictable. And weekly time for grievances, even when there are none.
What to watch. Whether "not fair" moves from the evening row to the morning conversation. If it does, the channel works.
There are no ready-made lines here on purpose: every family has its own words. All three forks mean the same thing: different does not mean unfair, if it is explained; an unjustified difference is honestly corrected; and a complaint is moved to a calm time instead of the rule being cancelled under shouting.
What may be behind it
- A growing sense of fairness. "He got more — not fair" appears in most children early and without teaching; it is a sign of development, not of being spoilt.
- Comparison with a brother or sister. The rule in itself is bearable; what is unbearable is that his is different. On jealousy between children — in the case on siblings.
- Testing the rule. If "not fair" once cancelled bedtime, it will be heard every evening.
- Tiredness and time of day. At nine in the evening the capacity to accept "at thirteen you will too" is lower than in the morning.
- Real unfairness. The younger child often gets more control simply because the adults do not revisit the rules.
- Doubt about love. "You love him more" is sometimes rhetoric, sometimes a real question — one the child needs answered not with words but with time.
What research says
"I got less — not fair" is there by four; "I got more — not fair" only by eight
Who and on whom. Peter Blake and Katherine McAuliffe, 2011, Cognition. Children aged 4–8; an economic game in which a child could accept or reject an unequal split of sweets with an unfamiliar peer.
What they found. Children aged 4–7 rejected splits in which they got less, but accepted those in which they got more. Eight-year-olds rejected both kinds of inequity — including the one in their own favour.
What it does not prove. One country, a laboratory, sweets rather than bedtimes. But for the scene above the conclusion is clear: a nine-year-old has long and keenly felt "he got more — not fair", while the capacity to give up her own advantage is recent — demanding it of a five-year-old is too early.
Three quarters of children do not consider different treatment unfair — when they see the reason
Who and on whom. Amanda Kowal and Laurie Kramer, 1997, Child Development. 61 children aged 11–13 and their siblings; separate interviews about whether parents treat the children differently.
What they found. In two thirds of the situations described, the children did not perceive the differential treatment as different at all. Of those who acknowledged that their parents treated the children differently, 75% did not find it unfair — and explained the difference by age, personal attributes, needs, relationship with the parents, or the sibling's behaviour. Children who saw the difference as justified spoke more positively about their sibling relationship. In a 2002 study by the same group of 135 children aged around 12 and their older siblings, where children saw parental preferential treatment as fair, they had fewer anxious-depressive symptoms and higher self-esteem.
What it does not prove. One country, small samples, self-reports, associations without causation. But the conclusion for a parent is direct: the problem is not the difference but whether the child understands its reason.
Dislike of someone else's advantage is everywhere; dislike of one's own is not
Who and on whom. Peter Blake, Katherine McAuliffe and colleagues, 2015, Nature. 866 pairs of children aged 4–15 from seven societies on different continents; the same resource-sharing task.
What they found. Aversion to disadvantageous inequity — "he got more" — emerged by middle childhood in all seven populations. Aversion to advantageous inequity — "I got more" — emerged in only three of them, and later in development.
What it does not prove. A sharing task, not family rules; the societies were chosen by the researchers. But the culture section below rests on these data: the feeling "I got less" is universally human, while what to do with one's own advantage every culture teaches in its own way.
For a parent the three studies point the same way: the hurt of "he got more" is early, strong and universal; most children accept different treatment when the reason is clear to them; and it is the explanation, not sameness, that separates a fair family from an unfair one in a child's eyes.
By age
| Age | What changes |
|---|---|
| 3–4 | Fair means the same, literally: identical slices and cups. Share equally where you can; where you cannot, a short reason and a change of subject, not a lecture. |
| 5–7 | Comparison with a sibling is serious now; "he got more" hurts. Explain the difference through age with a concrete date; make the queue for privileges visible — a calendar, "yours comes in …". |
| 8–11 | The case above is about this age. She understands a justified difference and notices an unjustified one — and is sometimes right. Set up a regular time for grievances and revise rules when the complaint has substance. |
| 12–14 | Unfairness is a principle and a bargaining chip. Agreements instead of decrees, admitting your own mistakes; on rules a teenager will accept — in the case on boundaries for a teenager. |
Where culture comes in. In some cultures the elder is entitled to more by default and nobody minds; in others equality between children is a value and any difference needs justifying. The data from seven societies show that the hurt of "I got less" exists everywhere, while attitudes to one's own advantage differ. The forks above do not argue with that: an explained difference is seen as fair almost everywhere — the only question is what explanation counts as sufficient in your family.
When to see a specialist
"Not fair!" at nine in the evening is part of growing up. Take notice if "you love him more" is constant and comes with withdrawal, tears for no reason, worse sleep or appetite; if resentment of the sibling turns into aggression against him; if the sense of unfairness spreads to everyone and everything — teachers, friends, strangers — with a feeling that "everyone is against me". That is a conversation with a child psychologist; where one child in the family is clearly and persistently favoured, a family consultation.
What a child learns when a difference is explained rather than cancelled under shouting
That different does not mean unfair, and that rules have reasons which can be found out. That you can argue with words and at an agreed time — and it works better than a slammed door. And that an adult can admit a mistake when a rule really has gone stale. On how rules hold without shouting — in the case on boundaries; on sharing between children — in the case on why a child won't share.
Sources
- Blake P. R., McAuliffe K. "I had so much it didn't seem fair": Eight-year-olds reject two forms of inequity. Cognition, 2011, 120(2), 215–224. doi:10.1016/j.cognition.2011.04.006
- Kowal A., Kramer L. Children's understanding of parental differential treatment. Child Development, 1997, 68(1), 113–126. doi:10.1111/j.1467-8624.1997.tb01929.x
- Kowal A., Kramer L., Krull J. L., Crick N. R. Children's perceptions of the fairness of parental preferential treatment and their socioemotional well-being. Journal of Family Psychology, 2002, 16(3), 297–306. doi:10.1037/0893-3200.16.3.297
- Blake P. R., McAuliffe K., Corbit J., Callaghan T. C., Barry O., Bowie A., Kleutsch L., Kramer K. L., Ross E., Vongsachang H., Wrangham R., Warneken F. The ontogeny of fairness in seven societies. Nature, 2015, 528(7581), 258–261. doi:10.1038/nature15703
The scene is an illustration, not a real family. This material does not replace an in-person consultation with a specialist.