So what I think you're referring to is something I might otherwise call the Pauli Exclusion Principle for Children (or PEPC) for short. Just like fermions, chi

So what I think you're referring to is something I might otherwise call the Pauli Exclusion Principle for Children (or PEPC) for short. Just like fermions, children it seems can't occupy the same state. This means that if one child is the "good one", a sibling won't be. They'll find their own niche. They could be the clown, or the athlete or the bookworm or whatever. So if I read your comment correctly, you're essentially saying something similar with coping strategies. I can't and don't disagree with that idea but it's not mutually exclusive with genetic predisposition either. Just imagine two sisters do have a genetic predisposition to "sugar addiction". It doesn't mean they'll both become sugar addicts.