27/03/2026
Siblings are often our children’s very first long‑term relationship - the one where they learn:
💛 how to share
💛 how to disagree
💛 how to repair
💛 how to love someone… even when they drive you up the wall
And yet, as parents, their bickering can feel instantly triggering.
We want them to love each other deeply, but often we’re listening to the 47th argument over who had the toy first, and our nervous system says “nope.”
Let’s talk about why this happens, and what our role really is.
✨ The Highs
Sibling relationships can be filled with:
shared humour
loyalty
in‑jokes
play that fills their nervous systems with co‑regulation
someone who “gets” the family culture from the inside
These moments reassure us that they do love each other.
⚡ The Lows
But siblings also:
compete for resources (time, attention, closeness)
trigger each other’s vulnerabilities
trigger our childhood experiences of sibling dynamics
speak to each other with a bluntness they’d never use with anyone else
And here’s the thing: that last one is developmentally normal.
Siblings are “safe people” to test boundaries with. Just like adults speak more openly with those closest to them, children practice emotional expression with their sibling long before they can do it elsewhere.
