My old school just built new washrooms with industrial doors. You know, those big heavy metal ones that are used for storage rooms and stuff. Sorry, hard to describe. And the walls are that white smooth concrete brick or whatever. Anyway, so there is no gap - at the bottom, anyway. There is about a foot tall gap at the top of the stalls.
Then again, there is a half-door above the sinks in the girls washroom, so maybe that school is just weird.
Anything reaching the floor rots , rusts , or otherwise discintigrates in an alarmingly short time. Thats why the partitions are held with metal brackets . So it is far cheaper maintenance -wise to leave them up high enough so that this does not happen.
My office bathroom in London has ceiling-to-floor cubicle walls. They’re not just partitions either; they’re solid brick and tile. It’s quite tempting to lock oneself in and take a nap someday.
Many pubs and nightclubs I know have very abbreviated cubicle doors. Half the concern is to stop the punters going in in pairs to shag (or more than pairs :eek: ). The other half is to prevent people snorting drugs off the cistern.
PS: once in Greece, I had to search for the flush for a full five minutes. It was a round black tile hidden in the floor mosaic, which you had to step on!