What you say is true for the USAF, too. One doesn’t necessarily have luxury accommodations wherever one deploys, even though the USAF generally has better billeting than the Marines. Even in hard billets, i.e. buildings, we’d have to share rooms and bathroom facilities. We also spent time in tents. In those cases, we had shower and latrine tents where you pretty much had to do your business with other men. Sitting in plain sight on the crapper while other men walk by is a bit unsettling. It’s an encouragement to get your business done quickly! LOL.
There’s also a big difference between knowing and not knowing if your bunk and shower mates are gay. If it’s against the rules to reveal one’s sexual orientation, a gay guy is going to hide their feelings. You don’t know if someone is gay, but you know they can’t do anything about it because their career is on the line. Now they can openly discuss their perversity with others of like mind, and us heterosexuals will just have to deal with it? Unless regulations pretty much duplicate DADT, then this shared facilities crap is going to hit the proverbial fan.
I have no doubt that communal facility’s will become a thing of the past.