Not to change the subject, but do those still exist? I haven't seen one in years upon years now. Just asked both of my teenage kids, and they both looked at me like I was retarded for suggesting that a bathroom be accessed from the outside with a key.
Interesting. . .well, there may not be many; but they do ‘still exist’. Was in a ‘service station’ not too long ago; when someone asked for key. Cannot remember ‘what’ kind of stations I was in however. Some of the smaller service areas; with a small ‘store’ in between; where bathroom entry is outside; rather than ‘inside’. Was in one as well; where key was needed and entry was from inside. . .so they are ‘out there’ but yes, most do not require such but most of these too; have only bathroom; not multiple stalls - where trouble more likely could erupt.
All over the place here. Lots of gas station bathrooms, and even the local Vons grocery store has a locked bathroom.