I wish I could find the original article, this is just an opinion piece on the topic. I assume it's only girls, but it might be both, I remember something about parents not wanting their children to wear, or be exposed to other children wearing, 'revealing' clothing (ie. shorts and t-shirts) in gym class, especially if both sexes take the class together.
![[Image: 186305514v6_480x480_Front_Color-Black-1.jpg]](https://images.weserv.nl/?url=img.photobucket.com%2Falbums%2Fv474%2Ftirenon%2F186305514v6_480x480_Front_Color-Black-1.jpg)