On a ranch, boys grow up seeing men ride, and they follow the example. City boys rarely see or hear of a man riding, so it is like taking a class in sewing - something girls do, not men.
I'm retired, and took up riding about the time I retired. I have the time to do so. However, when I was working, I worked 12 hrs/day, 5-6 days/week, and spent almost half of each year deployed to foreign countries (I was in the US Air Force). When I was stationed at RAF Upper Heyford north of Oxford, did I ride? Not a chance! For most of the year, I started work in the dark and finished in the dark. If I was lucky, I might get off work in time to run the dog along a bridle path nearby, but that usually only happened when we started work at 3 AM. I don't think it ever occurred to me to even try riding horses.
Now I find myself doing something that is completely dominated by girls. Not even women, for the most part, but teen girls. Horse magazines advertise clothing for teen girls. Questions tend to be about how a pink saddle looks. On the English riding side where I live, I don't think I've ever driven by a stable and seen a guy riding. A list of local trainers or riding instructors is 100% female. I sold one of our mares to a guy, and he's the only guy I know who rides apart from ranch work. In the church I go to, several of the men rode horses while growing up on ranches, but gave it up after they left the ranch.
If I didn't like our horses so much, I'd probably give it up. I can't go to a gathering of riders without sticking out like a sore thumb, with girls the age of my youngest daughter wondering who the guy with bifocals is, and doesn't he know that you DON'T put an English saddle on top of a Navajo blanket...but then, an advantage of being a retired old fart is not giving a rat's rear end about what most people think.
But it would be nice to pick up a horse magazine and see an advertisement for a rifle, or hunting trips, beer, or SOME suggestion that all their writing isn't oriented toward the 14 year old girl!
Aussie style saddle in the picture below, and my wife braided my mare's mane at the time of the photo - normally it is loose, and I've trimmed it since then to make it easier to deal with: