Yeah, that and an enormous number of other nearly all-male hobbies. Unfortunately this leaves men who aren't in to trains, electronics, shooting, cars, or other stuff with few options.

Obvious disclaimer: there are plenty of women who like trains, electronics, shooting, cars and other stuff, but that doesn't change the very high chance of finding the romanticized "all-male-space" if you show to a rail fan meetup.

For when you want to meet all the feds in your area.

Of course. They are members of the clubs.