Well, if you mean Twinkie Chan the amazing girl that makes strawberry scarfs cupcake scarfs and hotdog purses. She is 35 years old, she said so on her tumblr account on August 6, 2011! That brave soul for admitting her age!
Same as men and that is completely individual and cultural. A small child once said I was old when I was 15. It seems silly being 50 years or older today. What you feel is what you are I think. A 99...