It's a fantastic thing for them to do, it teaches them so much.
There's discipline, responsibility, compassion, care, love, bonding, exercise and excitement. I know you fear for her and what could happen but that's another reason they enjoy it so much at that age because they feel invincible, as we all did. What better way could there be to feed that teenage passion?
It brings back memories, I can feel that pride and love.
