I love wearing jeans when I go out. First of all, it's the most passable outfit you can wear. A cute top, jeans and a pair of heels and I look like 95% of GGs my age going out on a Saturday night.
Even if I don't wear jeans, I'll usually choose capris or gauchos (this season) over skirts. It's just that you don't see many GGs going out in skirts, and my goal is to blend in, so I dress like the GGs do.