This is a thoughtful reply. I will just say that the UK also has public toilets all over the place, and a desire for people to not screw & get high in the cubicles. Ditto many other countries. But I’ve never been anywhere else with this door gap problem, where no-one gets privacy.

I did once use a UK bathroom in a supermarket where the lighting was all blue, which makes it hard to find a vein to inject. But the doors still closed properly.

Sticker price isn’t the price you pay at the till. Why? Why do you do that.

Massive gaps between the walls and doors of public lavatory cubicles. This is not some mystical, advanced technology. Get it together.