what if you are wearing shorts, like in the gym? I have seen more than my share of balls hanging out of shorts there. Usually its old guys who are wearing big lose boxer shorts with their gym shorts. Its not a pretty sight.
I have to wear underwear. I can't stand free ballin b/c for some reason, I still get aroused very easily and it happens all day. I would rather put up with the tighties compared to trying to hide myself while walking around at work all day.