Today I learned that children in aspiration failure can attack other children and get into fights - even if they have a good relationship with the other one! (And the parents can cheer them on... )
I noticed this trend when I was following a Test of Time challenge where the Neanderthal stage children kept fighting against each other. The loser of course, gets killed. I thought it was just flavor text to tell how the kids die but kid brawls can happen ingame! dear oh dear.