NG your comment "When you hear what some 14 year olds get up to, the idea that they might wear a short skirt to attract sexual attention is, in fact, pretty tame. " led me to believe that you had less than flattering thoughts about the girls. I said that maybe I had been a bit strong, before you responded. It was a gut reaction to the sort of language used by the sort of people who make statements like the one I quoted just now.
The crux is
That you say that teenaged girls want sexual attention (can you define what you mean by that? and from who?) and that they wear short skirts in order to communicate to boys (men?) that they want this sexual attention, and they do this knowingly.
My stance is that the vast majority of teenaged girls wear short skirts because its the fashion, and it's what their friends do. That the "sexual attention" that they are seeking (if any) is pretty much innocent, and that they are generally pretty horrified when they attract "sexual attention" as they go about their general business.
I further think that teenaged boys will be attracted to teenaged girls irrespective of what they are wearing.
Reading this thread one would imagine that in our society, a short skirt is an absolute signal of sexual availability, no matter who is wearing it, and what they're wearing it with, and what the situation is. This is not true.