Read the whole comment. I don’t have many friends, and all the close ones are women. I can talk with them about many things, but sometimes I end up relying on the only lesbian one among them hoping that she’s “male enough”.
My comment is anecdotal, of course, you don’t have to believe that many other people have sometimes the need of hanging out only with other men. But even among acquaintances who hang out in couples in a friend circle, it’s habit that some weekend retreats are boys-only, girls-only.