I don't know why people shave lol
It feels much more comfortable to be shaven than it does to have it entirely untamed for guys. I can't speak for trimmed. When you first shave it you can get razor burn / ingrown hairs which loving suck, but after a week or so 90% of that goes away and the world is a better place. There's better air flow, less friction, less itchiness, less sweatiness, etc. (also, it enables you to see your whole richard because the bottom quarter isn't hidden by hair, so yo richard looks bigger (y))