Nope. Even in cold weather nylons are not worn. They’re out of style. Older women wear them..... Tights are another story.
Your use of the word nylons is different. Are you American? In style, out of style, it’s cyclical. Casual office wear has been the culprit more than anything. A down economy tends to cause people to want to up their game as far as appearance, don’t want to look like the office slacker when pink slips are flying.
I’d imagine over-the-knee socks for women are out of style in your estimation, too. They’re not.