Riding a horse is sexual now
This view has existed for a long time and has been used to limit women's freedom to travel, and make them ride in much more dangerous sidesaddles.
Oh ew. That's far from true. If you accidentally slam your junk on a hard surface you aren't going to be happy. I've done that a few times while riding a horse. Shit can hurt bad.
Can you imagine being someone who thinks that riding a horse is a better lay than they are?
Dude, no girl needs to buy and stable a horse when a toy does a much better job than 99% of men, and doesn't require feeding.