When I went to college in the early 1970s, our bathrooms at the dorm were all co-ed. That was 45 years ago.
My answer is , “so what?”
Pretty simple shift can fix this. Have a standers restroom with open troughs. Have a second all gender room with floor to ceiling walls for visual and sound privacy. Biggest issue is cost to re-engineer all the public restrooms owned by we the people.