@endali Especially otherwise-identical single-user ones! It makes no sense to have a line for one single-user toilet while the other is completely unused.

There's a burrito place I've been to before that has no less than three single-user toilets in a tiny burrito joint: a unisex "employees only" (it's not marked as a toilet, I only know because they left the door open once) and two gendered single-user ones. And unlike a lot of places around here, the "men's" toilet doesn't have a urinal. They're identical if it wasn't for the sign on the doors.