It's one of the worst-kept secrets of family life that all parents have a preferred son or daughter and the rules for acknowledging it are the same everywhere: The favored kids recognize their status and keep quiet about it - the better to preserve the good thing they've got going and to keep their siblings off their back.
I certainly derived my skills as a prose writer from my scrutiny of poetry and of the individual word. But schools don't do things like that anymore - tracking words down to their roots.