Maybe the folk scene is still very blokey, though the last 3 venues I've been to have had several women doing floor spots: autoharps, concertinas, fiddles.

However, the indie scene, as I described above, has a healthy proportion of women players and far more mixed bands than ever make it into mainstream. I guess that since most of them are in their teens and early 20s, they haven't (yet?) come up against the family commitments mentioned by Rockhen above.

I'm probably a bit odd, being a 54 year old bloke going to unsigned indie gigs where I'm often the oldest there by several decades, but some of the music's great. There's a lot of dross too, but it beats paying £100 for a stadium ticket to see a distant screen showing broken-down versions of bands from my youth who've reformed to pay a tax bill :-)