My sister did it when she was around 12-13 and she did not tell Mum in the beginning as it was not allowed to do it so early, at least not till you are 18 or so.
My Mum did it only when she was 38... Michael says that his Mum was younger when she did it.
But I did it now! I was afraid that it will hurt a bit (as they are telling), but luckily it didnt.
What do you think?