I recall going to BIBLE CAMP in the 70’s (‘77 or ‘78) and the college-age cabin counselors would shower with the boys. Nobody thought anything of it. One counselor I can see in my mind to this day was what I now know was a perfect Castro clone specimen … even before I knew what a Castro clone was! (White briefs. Moustache. Dark hair. Hairy chest. Treasure trail.) My own cabin counselor was a trim, taut hairy blonde guy with a big dong who didn’t wear underpants. Even the “visiting minister” showered with the boys; by day he was a nerd but naked in the shower he was a hot dude! I think the 70’s were the last decade where boys were told that is was “OK” to be naked with other boys; that it was no big deal. Over and over I heard, “It’s just the guys! Get over yourself!” when we expressed trepidation about group showers and locker rooms. I used to go with my Dad to his father’s club and walk through the locker room filled with mostly naked men, a cloud of cigarette smoke and an ocean of Scotch. Sure, one looked but one didn’t point or laugh or stare too long. My grandfather would introduce me to his friends and everyone was cool. I get where the OP’s experience might suggest a certain “creepiness”, but given the time frame suggested I think it was just accepted as the norm. Looking back, do I think one or more of the adult men showering with boys to be a creepy voyeur? Yeah, probably. I guess as long as it didn’t go beyond showering next to each other it was all right. Or, at least, “not wrong”. I’m so f*cking old.