Originally Posted by: AkiraPersonally, I think it has something to do with media representation, and with the promotion of traditional values through the media.

Can you elaborate more on where the values come into it? Not following you exactly there.
But I do see where the media plays a role. Usually if I turn on the television (which is a rarity) and see anyone playing a guitar, it's usually a guy.
EDIT: not trying to say the media is sexist, just pointing out that girls don't often involve themselves in it as guys do.