[consteval]

I don't think this is necessarily the case. All the gyms I've been to have been majority men, like 80%+.

I think the "activities" part plays a role. I think a lot of men today struggle with socializing, especially with groups that have a good chunk of women. They feel like they don't belong and are acutely aware of how they can be perceived.

The gym, on the other hand, is a pretty isolated thing.