The result of telling your ten-year-old it's too early to start shaving her legs:
That bottom cut is a wing-dinger...it made Dave almost pass out when he saw how deep it was.
I think she learned her lesson. I think I learned one too.
So we made a pact (along with the other kids too): I will be happy to discuss with them the "why" when I tell them "no" if they'd like to know. And in turn they will trust me that sometimes I know what I'm talking about :)