That would be a valid reason to ask for a doctor's note. But even then I'd only do it if their absence is negatively impacting productivity and they're really n

That would be a valid reason to ask for a doctor's note. But even then I'd only do it if their absence is negatively impacting productivity and they're really needed at work. Or if there is something else in their performance I was concerned about. Otherwise a lot of offices are basically empty at that time, so who cares? As long as they're not coming to work when they're actually sick so they can hoard sick days, does it matter?