9 Years old
what ever size you get or type
Whatever size she is, is the perfect size for her.
There is no ideal bra size for a 12 year old. Your bra size will change a lot over the next 8 years, and probably over your entire life.
What size depends on what size her breasts are. if she has none she doesn't need any. Ask the lady in the store to help you because girls are all different.
34B
1AA
probably no boobs at all and completely depends on her weight, differs from person to person.
Fourteen year old girls may all have different sizes of bras. It may be any size, from 28A to 42D.
I am a 16 year old girl and I wear the bra size 34AA and when I was 13 my breasts did not even start growing and I did not have a training bra when I was 13. You should talk to your mom or a doctor cause your bra size is not normal for your age.
Depending on the size of your breasts, most girls start at around 12 to 13.
Most girls get bra's at the age of 11 or 12