I am in the middle of teaching a class now. Wearing a mask while lecturing is a bit interesting- it tends to fall down off the nose when you talk, so I am constantly adjusting. It clearly minimizes the chances of transmission though, and it is a minor inconvenience at most. I just don't get the whole "liberate" political crap. We all wear seatbelts, and we didn't used to have to do that either. Wearing a mask minimizes the spread of all sorts of viruses. After getting Norovirus in back to back winters, I started paying more attention to hygiene when out in public places and keeping distance from random people, even before all this. Assuming we get a vaccine and this passes, I may very well continue wearing a mask in certain situations, esp during the winter months. A major aspect of "fixing" the healthcare issues we have in this country is preventative.