Can't speak for the US, but e.g. generally Norwegian teachers aren't allowed to wear masks at work. Unless things have happened behind the scenes that I'm not a

Can't speak for the US, but e.g. generally Norwegian teachers aren't allowed to wear masks at work. Unless things have happened behind the scenes that I'm not aware of, this is under threat of being fired, although I doubt anyone has actually been fired over it. Surely there must be other professions with similar rules, or cultural quirks to the same effect.