What the rivalry is about
To a young child, love looks divisible: attention given to a sibling feels taken from them. That perception changes with age but never quite disappears; by school age it turns into an argument about fairness. So 'you give him more' is usually not about quantity — it's a request to be seen.
How it looks at each age
| Age | How it shows | What helps |
|---|---|---|
| 2-3 | Regression: asking for nappies, baby talk, wanting to be fed | Not punishing the regression; knowing it passes |
| 4-6 | Direct competition, grabbing toys, insisting on being first | A visible system for turns and time (a timer, a chart) |
| 7-9 | Arguments about fairness, comparison, 'that's not fair' | Using the language of need rather than equality |
| 10-12 | Sarcasm, boundary violations, conflicts over privacy | Writing the rules about personal space together |
What instead of equality
When exact equality is the target, children start measuring, and every difference reads as a violation. A more workable frame is need: 'I give each of you what you need, and your needs aren't always the same'. That sentence doesn't have to be accepted on day one to work; it has to be repeated consistently.
What to do in a fight
- Stop the violence, not the argument. Hitting stops; determining who was right isn't your job.
- Keep the outcome the same for both: the disputed toy goes away for a while. This lowers the payoff of telling on each other.
- Don't fix the roles. 'You're the big one, be understanding' leaves the older child a standing burden and the younger a standing privilege.
- Ask for repair rather than forcing an apology. A forced sorry teaches nothing; 'what can you do about this?' teaches something.
- Name the good moment: 'you waited your turn', 'you made room for your brother'. This is the fastest-acting intervention there is.
When a new baby arrives
- Rather than an elaborate build-up, explain how much of the daily routine will stay the same.
- At the first meeting after hospital, not holding the baby makes it easier to greet the older child properly.
- Let regression — nappies, speech, sleep — pass for a week without being made an issue; it usually resolves on its own.
- Rather than giving the older child jobs around the baby, protect one-to-one time that has nothing to do with the baby.
Common questions
My child keeps hitting their sibling. What should I do?
Safety first: violence is stopped every time, without discussion. Then the pattern: note for a week when it happens, at what hour and over what. In most families the tired hour and one shared space stand out, and that's where the fix starts.
Is it wrong to give the older child more responsibility?
Not when it's age-appropriate and willing. The problem is responsibility becoming identity: every demand attached to 'you're the older one' builds resentment over time.
Is rivalry different with twins?
The difference is there's no birth order. That doesn't reduce comparison — it can increase it, because the yardstick is the same age. What helps most with twins is separate activities and separate friendship circles, so each has their own ground.
Is it right to stay out of their fights entirely?
If there's no violence and both children can negotiate, staying out teaches something. But where the power gap is clear — age, size, verbal ability — staying out teaches that the stronger one wins. The measure isn't violence, it's imbalance.