How old were you when you noticed u needed a bra, and what signs did u see?
Most Helpful Guy
especially if girls don't wear undershirts, they should start wearing a bra right around when puberty starts, even if they haven't filled out yet.
for one thing, it helps get used to feeling it. for another, areola and nipple can be visible through the shirt, or seen through sleeves and the neck collar, even if not baggy or loose, if some situations move her in such a way that a person, intentionally or not, can catch a glimpse. Many girls would find this quite embarrassing. a bra keeps anything from being seen.0