One of the things that makes me really thankful to be a girl is underwear.
Ours just fits so well. Everything on our body is smooth and flat, so it’s easy to make it conform to the shape of our body.
But that’s not the case with you guys. You have this weird, floppy, irregularly shaped thing dangling from your crotch. It’d be impossible to make perfectly-fitting underwear, especially since your penis gets bigger and smaller when you have an erection.
So you have to kind of awkwardly stuff it into briefs or boxers. Isn’t that uncomfortable? It’d be like wearing a shirt without sleeves, or gloves that didn’t make room for the fingers.