Let me preface this by saying I am a man, and smoked a little too much, so I’m sitting here thinking… what is or was the original purpose of a bra? Weight support? Vanity? Covering the nips so people’s eyes met your eyes and you can have a normal conversation? Like what’s it all about?
I think it’s much the same purpose that underwear serves for the testicles (and penis). As a man, I honestly can’t remember any time I walked around without underwear, but I’m pretty sure it would be worse than with. Things would just flail everywhere.
Other answers about bras are great but I thought the male flip side ought to be mentioned.
Meh. I went without underwear for a while. It’s kind of freeing when I’m at home, but those times I have to run out and forget to put on shorts or pants without a belt, it’s a little stressful lol. The first thing my wife does when she gets home is takes her bra off, so I ultimately guess it could be the same, but there’s no social impacts if men don’t wear underwear under their trousers when in public