For example, when I go to the dentist, they take my temperatures and have me drink some sort of concoction. Then I take my mask off and it's time to go to work.

Now surely if they can be within inches for an hour doing such work - they can have kids remove their mask for a photo, then use spray cleaner and quickly clean the little area and it's "next!". So damn stupid to take 200-1,000 photos of students looking like you can barely recognize them.