I wasnt allowed until I hit highschool so 13 but I was teased over it, I think it would have been easier on me if my parents let me when all the other girls started about yr 5-6. Mum had her reasons though she wanted me not to get the dark itchy hairs so quickly and she had to shave regually so I guess she was trying to save me the effort. Definatly positives to both sides.