I question why anyone thought that "gay only" bathrooms were ever necessary if not for the purposes of "protecting straight people," but I really like gender neutral bathrooms with multiple stalls myself. The university I attended only had one gender neutral bathroom, that would usually be a 10 minute walk to get to from the building I worked in mostly so that sucked, but it had three stalls, and the doors unlike most bathrooms went from floor to ceiling, and didn't have that gap on the sides, so there couldn't be peeping. It did make for some interesting, "oh hi Mr. Andrews, I never thought we'd be in the same bathroom together moments", but other than that there was really little awkwardness. I have heard of other facilities where it seemed such bathrooms were installed just to appease people and very little money was spent making for practically ply-wood doors and messy facilities, and a couple trans folks have commented it just seems like a disaster area waiting to happen.