my mum made me wait until I was in high school (13), I had thick blond hair. Very self conscious about it. She took me to a beauty salon one evening (it was dusk - lol I remember!) and got them waxed. Only the bottom half though. I think she wanted me to have them waxed everytime. She was very disappointed when I found her razor and dug a great big hole in my shin.

No idea when my sister started....