Obviously toilets, change rooms, and so on. Most men are not at all happy to have women in these spaces. Some men, in some religions, cannot use those spaces if they are mixed.
But then there are other kinds of single sexed spaces that both men and women might like. Social clubs, group therapy settings, sports clubs.Many women don't want to allow for groups like this to be men only, even though they want to legitimize women only versions.
Thanks for getting back to me.
I don't think women do oppose the second sort of men's single sex space - unless it's somewhere like the Garrick Club (before the vote to admit women), but even in that case, many women aren't that bothered. Obviously I can't prove any of this, but it's really not my experience and I think the discussion on this board backs me up. Remember that it was women who set up The Shed network, where men talk to each other about their feelings while doing a task.
I've got no problem with a men-only football club - it's the absence of a female-only club, or a club which has teams of both sexes, which is the problem. A club can be single-sex, but the sport of football/cricket/swimming etc isn't and shouldn't be. In a small town or village, there may not be enough interested girls/women to make a separate club viable. So the men-only club comes under pressure to let girls/women use its facilities now and again. That is just practicality. There is no suggestion in such a situation that the men/boys cannot be allowed their own team. It's just that there aren't enough resources - volunteers, buildings, pitches, coaches, etc - to sustain two entirely separate clubs or teams.
I think women's focus is on wanting to get away from men and the male gaze and the emphasis tends to be on safety because that's seen as the strongest argument. Some women feel strongly that women-only book clubs (as an example) shouldn't have to include men with GRCs (that's how I feel) - even though safety, dignity and privacy aren't really issues in that situation.
We understand wanting the companionship of others of your own sex. I do, certainly. Some of the reasons women need space away from men are different to the reasons men need space away from women. Additionally, the relationship is not symmetrical - you can't ignore the power dynamic in society, or the axis of oppression - whatever you want to call it. Nevertheless, I think most of us women are quite chilled about, or in favour of, men having their own groups. As long as we are able have our own, single-sex spaces, the majority of us don't care what they get up to.