No they don't. some girls are just petite. I'm 14, only size 34a. i have a friend that is like 36aa or something. so yeah. and some girls don't grow boobs at all. if you're concerned, go see a doctor though.
answer: Yes, all mammals (male and female) have breasts. Some are bigger than others. Girls mature at different rates, so it may take a while for some to develop breasts.
Girls may have small breasts but they are still girl breasts.
everyone is different,.. but girls usually get breasts in middle school
Girls develop breasts so when they have a baby, they are able to breastfeed. During pregnancy the breasts get larger and fill with milk to feed the baby. Those are the main reasons girls develop breasts.
There is no reason for you to want bigger breasts
Not all girls have big breasts. Well girls bodys difer then boys do. its just like extra skin....
Because men don't have breasts.
That is dependent on the girl herself. Many girls do enjoy having breasts for various reasons.
some girls do some girls don't.
They don't.
bra
No.
Well obviously...