Alternatively, you could introduce a different two-tiered toilet system - sitdown or squat at a 50/50 ratio. Squats are faster, unisex, and you don't have to touch anything so could be seen as cleaner, but of course they have the major caveat that they're ableist.All gender bathrooms are not ideal for all situations. Try making stadiums with only those and see how long the lines are for everyone to use the bathroom. When a lot of drinking is involved, it's always better to use some space for urinals and let people through faster. And having used all gender bathrooms, I would not want to use them as a woman having to sit on clearly wet seats. No thanks. Everyone should be able to use the bathroom for whatever gender they identify with but it doesn't mean we need to remove gender from everything and change our infrastructure.