Men crossing their legs is a thing, and here in Tokyo it's not super common for guys to go all spreadeagle, regardless of muscle mass. I suspect that biologica

Men crossing their legs is a thing, and here in Tokyo it's not super common for guys to go all spreadeagle, regardless of muscle mass. I suspect that biological "explanations" are little more than folklore, and manspresding is just a case of comfort via familiarity.