Why wear a bra? No-one needs to wear a bra, but bras protect and support breasts, they help to make you feel comfortable when you are dashing around doing sport, they can help a girl feel good by giving a shape that she likes to her body and they can make a girl feel less self conscious when wearing tee shirts around those 'immature' boys in her class or friendship group. Boys can be such a pain sometimes, twanging bra straps and making silly comments - can't they?
What age do breasts fully develop? How do breast start to develop? Are my breasts normal? Can I change the way my breasts develop?