This is true; a lot of guys dress this way naturally. I'm hoping the difference is that I actually _thought_ about what I wanted to wear every day, rather than just wearing jeans every day. I only know one guy who's consciously done this, and he's a designer, too.
Right. What interested me was the double standard I mentioned (and I should be really clear: I'm not sitting here and being a men's rights whiner about reverse sexism or anything like that, I'm honestly interested). Clearly guys aren't doing this out of instinct, we were taught to do it too. But it happened at an age and in a context where there was no value placed on the decision. It's just "how it's done", like brushing one's teeth.
For women, coming to the same kind of decision is a lifestyle hack. I don't know what to think about that.