Well, it’s because ladies are usually smaller, so they are less likely to be hanging out of their seat space than men are. Nobody likes having to sit next to anyone, but if I have to pick someone, I’m picking someone who won’t be rubbing their thigh on me and elbowing me in the ribs while they try to play on their stupid phone.
Now other women gravitate to these women as well so the men have to move fast to grab a seat with one. Otherwise they are usually stuck with a slob of another male.
Last week, I had another man share my three-seater and he proceeded to eat popcorn the entire trip. By the end of the trip, he lifted the bag up to his mouth to suck in all the popcorn remnants and he had corn kernels falling down his shirt and onto the floor.