Earlier quoted context omitted.
> Having social space that's limited to a set of people one knows, more or less, and that has rules on behavior seems like a civilizing influence that's missing today. You just described a country club, right down to the innate classism and exclusivity rules.
Are male only country clubs legal?
For an example of gender discrimination at private golf clubs:
https://www.golflink.com/lifestyle/no-women-past-rock-chicag... lists Old Elm, Bob O'Link, Butler National, and Black Sheep Golf Club as four Chicago area male-only golf clubs.
> Perhaps no club makes its restriction more apparent than Black Sheep. At the end of the club’s lengthy driveway sits a large rock and the internal slogan amongst members is, “No Women Past the Rock.”
https://forums.golfwrx.com/topic/2013806-black-sheep-golf-cl... has a comment from last year verifying that gender restriction. I have not verified the others.