Men's Sheds are another example, like men's health projects, of how men can have their own stuff, but women have to be 'people with....'
The UK Men's Shed website is a bit coy about being men-only, this was all I found:
Who can attend a Men’s Shed?
Men’s Sheds are community spaces that aim to be inclusive and welcoming to men of various backgrounds and experiences. Many Sheds also accept Women members. While specific policies may vary from one Men’s Shed to another, the general idea is to create an environment where men can come together for socialisation, skill-sharing, and mutual support.
Frequently Asked Questions (FAQs) | UKMSA | Men's Sheds Association
I think they could probably argue that their aims e.g. improving mental health, are such that they can legitimately claim exemption from the EA, and good luck to them.
But they should be upfront about that, and the same should apply to similar women's groups.
The Irish Men's Shed website doesn't mention women at all, so in a country which is so depressingly TWAW and 'birthing-parent'-ish, men can set up their own group, promote it as a men's group, get public funding for a men's group, etc etc. Not a problem😒