I didn't post that just to be PC, I posted it because I felt that in that context, "women" would have been a preferable, more respectful term, even though I wholeheartedly agree that English is a bit lacking in that it forces you to choose between "girl" and "woman", neither one of which is ideal. I would have erred on the side of respect, though.

Italian has ragazzo/a, which can be used both formally, and informally, for anyone from their teens to early thirties. It's far superior to the dichotomy that English forces upon us, but be that as it may, "girls" is probably left to women to use amongst themselves as they see fit.