The sports bra decision at age 10: what to buy, how to talk about it.

You are in Rebel Sport on a Saturday afternoon. Your 10-year-old is standing two steps behind you, pretending she does not want to be near the underwear section. A friend at school got her first sports bra last week. Your daughter has not asked outright. She has dropped two hints, and one of them was sharp enough that you remembered it on the drive over. You are looking at a wall of crop tops and proper sports bras and you have no idea what to buy, what size, whether she is even ready, or what you are supposed to say.