[gambiting]

>>What I really wish we would get is stall door locks that indicate if locked or not.

Wait......that's not standard in the US????? I've never seen a bathroom with a door lock that doesn't show its state on the outside, even if it's a simple mechanical latch.

[bombcar]

You often have to "crackpeek" to see the state of the basic mechanical latch in the USA: https://www.reddit.com/r/pics/comments/11rd9ia/i_hate_how_to... has a picture

The "moving part" doesn't go through the door.

Fancier bathrooms have deadbolts or equivalent that show the occupancy on the outside; amusingly enough so do the portapotties.