I remember I went to see Le Tigre in 2001, when I was about to turn 17. One (straight) male friend in our group said afterwards that he had felt really uncomfortable and unwelcome at the gig, like he wasn’t supposed to be there and it wasn’t for him. He was quite surprised when I and another female friend said that’s how we felt nearly all the time at gigs. It had never happened to him before at the age of 19. It really didn’t help that I was going to see a load of post-rock and post-hardcore bands at the time, and the whole thing was just a total sausage-fest. It was rare for me to see a woman on the stage, and that was in big acts like Sonic Youth. I can’t even think of any I saw at a local gig. Not one.
Also I remember how nice it felt when I went to see Toro Y Moi, and the crowd looked like the mix of people you’d see on the street outside in London, the same mix and proportions of genders, races etc. You get way too resigned to just seeing this sea of white men, and I think it always puts you slightly on edge. Like you might be “allowed” to be there right now, but actually you’re kind of on the edge.