I also have this problem. My whole life really. It was something that I didn't feel comfortable talking to my parents about and they never mentioned it to me. So I grew up hating my body, being ashamed, embarrassed etc and basically wanted to die from a very young age. I'm saying this because if someone had told me that it is normal and gave me ways to deal with it then I would have reacted better. I know this sounds a bit over the top but being hairy as a young girl can be quite distressing when all your friends are wearing short shirts etc. So make sure that you talk to them as they get older and give them ways to deal with it. I bleached the hair on my arms and just still cannot wear revealing clothes. It doesn't affect me as much anymore as I couldn't care too much what people think of me anymore but I'm much older now. I have dark hair on my arms, back and stomach. Not thick like a man's but noticeable.