Sort of, but scrapbookers are older and also about a zillion times more boring even than sewers.
Women of all ages sew, though, and they form their own groups and have their own divisions and interests just like we do. Apparently some knit as well, while others don't, and some consider it distant from sewing or even dislike it - it puts me in mind of how there are comic nerds, video game nerds, roleplaying nerds, all part of the gaming nerd identity but separate interests themselves.
This is the OP, by the way. The only other thing I could think of my friend shared was about the lack of male patterns. He likened it to how in roleplaying fantasy everything's a male fantasy, with pictures of skimpily dressed women and muscular, heroic men. There's usually only a small effort made to make things appealing to women, and these attempts are often clumsy and possibly even more likely to alienate.
Similarly, the available mens fasions tend to be terribly out of date or are otherwise what women would like or imagine men would wear. There are handsome suits and a few obvious basics like t-shirts, but no sweaters, no undershirts, no gym clothes and precious little good casual wear. The few men my friend has connected with online have confirmed that a man interested in sewing his own clothes basically has to learn how to invent their own patterns sometimes although they were good enough to share their own resources.
Some girl he met recently (knew vaguely of before but became more of an acquaintance after he revealed his interest in sewing) lent him some sort of fancy sewing machine and fancy multi-pattern thing. He's very impressed (I have no clue what it is or what it does), but a bit weirded out she was willing to lend these to him while hardly knowing him.
Personally, I suspect he might have befriended a 'nice girl', but I'm mostly joking. If it turned out to be true though, woah, wouldn't that be a thing? Get a chuckle out of me for sure.