It has nothing to do with the “package,” but rather the cajon es. A guy can have some real pain from sitting with his legs closed tightly together, and I might add that the pain doesn’t instantly go away when the pressure is removed.
With that said, I find the way a lot of men sit to be ridiculous. A very slight “manspread” can be a biological necessity, but sitting with ones legs at an almost-90-degree angle is just a ploy to hog more space.