nicelyproportioned saidWhen I was in a fraternity, I used to love coming out of the shower to find a line of brothers standing buck ass naked in front of the steamy mirror, their brows furrowed as they carefully studied their reflections and worked to make their faces baby-smooth.
Yeah, I saw that in US Army barracks when I first enlisted, and later in some of the older Bachelor Officer Quarters that still had a common latrine. I tried it myself a few times and had to wrap my towel around my waist, to hide my growing plumpness. Having naked guys shaving and brushing their teeth to either side of me was too much to remain unaffected for long.
I also saw naked shaving in Army gyms, and in Air Force & Navy gyms, too, on the occasions when I used them. And there have been a few civilian health clubs where I've seen it, as well, so not as exceptional as some guys in other threads here have stated.
And BTW, when I returned to college in the early '70s, one of its smaller campus dorms became designated completely co-ed on all floors as an experiment. Only each double-occupancy room retained same-sex roommates, but the common hall bathrooms were mixed at all times, including the gang showers.
Dorm residents had to be never married, under 25, their homes more than 50 miles from the college, and they had to enroll in a college-credit course in "Adult Living" or something like that. Twice a week everyone had evening classes in the dorm's community room with a professor, to share their living experiences, and eventually write a term paper about them.
Each of the 4 floors got to create their own privacy rules if they wished, and 2 floors devised a system of signs and times on the bathroom doors for exclusive use by gender, but 2 others did not. Plus the rules were not always followed. One complaint by some women was men shaving nude at the sinks, meaning guys weren't even phased by having females around while they shaved naked, much less other males. And this was nearly 40 years ago. (I didn't live there myself but was friends with a guy who did, and would visit him there, and see this happening)