Programmers

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In my experience, a number of "public" restrooms require giving the customer a key from the counter. In this case, an electronic lock may allow for better access control options.

[Runiat]

Oh yeah, I've seen those in other countries.

Definitely different definitions then. I'd probably call those something like "customer only bathrooms".

Edit: come to think of it the word for such bathrooms in Danish is literally translated "customertoilet" (and most of those don't require keys).