Maybe it's just me, but when I use a public restroom, I prefer a little privacy.
Some places have those six-foot high solid doors that go all the way to the floor. I think it's our local Buffalo Wild Wings. Maybe they're set up for clandestine trysts. And there might be some random casino with them (because people need a lot of privacy to count their winnings), or a country music show in Branson (because nothing says white trash like an over-the-top bathroom stall).
THIS is not a door that makes me feel secure! It was in the restroom just off the lobby of the Holiday Inn Express. We won't go into why I was in the public bathroom when I'm paying a fortune for a room there. Try to focus. This picture was taken from INSIDE the stall. And I can see right out! Sure, I know the slats make it easy to see one way, but not the other. But let me tell you, if an obnoxious child, or a perv came in and got down low to the ground (where obnoxious children and pervs like to hang out), they could see right into that stall!
Here's a view from outside:
Don't know what the purpose is for that kind of door. Saving wood? That's the only benefit I can think of. Nobody really wants to hear and smell what's going on in there, do they? Unless it is, perhaps, obnoxious children and pervs. There were only two stalls in there, and they were exactly the same.
Funny how the rest of the room looked normal.
Yes, those vented doors are better than the swinging saloon half-doors that I saw somewhere. And better than no door at all. But that's the only positive thing I can say about them.