This is exactly what dress codes are telling girls. If your skirt is this short then you're vein slutty and distracting the males in the school who are obviously more important. That's what we're told. Is that okay? No. Does it happen anyway? Yes.
I'm sorry, but if lesbians can control themselves in a girls only changing room with ass naked women waltzing around. Then I figure men should be able to control themselves with clothed girls walking down the street. Just a thought.