It’s “brave” and all that jazz for a teenage girl to challenge a high school’s totally sensible dress code (which is more lenient than my job’s dress code btw). People get behind that sort of thing immediately and say that dress codes like that tell girls that boys’ ability to concentrate in class in more important than a girl’s education. Not that those dress codes ever get enforced anyway, since any teacher who tells a girl her clothes are inappropriate will immediately be fired on sexual harassment charges. So no challenges are really necessary.
But the minute a company starts trying to sell clothes that that same girl claims to want to wear to school, the cries of sexism and “that doesn’t pass a dress code”, immediately ensue.
So I guess any girl who wants to wear slutty clothes to school better take some sewing classes. Because it’s totally fine for her to dress that way, but heaven forbid if a company should sell it to her.