Good point. I can't think of a situation where I've seen a public toilet that exists for it's own sake. But I can think of many situations where toilets are par

Good point. I can't think of a situation where I've seen a public toilet that exists for it's own sake. But I can think of many situations where toilets are part of otherwise publicly owned facilities - like mass transit depots, visitor centers, highway rest stops, etc. So I guess the supply of public toilets becomes a function of the amount of general public facilities in the area. Which is to say that your experience will vary depending on your context - probably just rural vs. urban.