Again with the summarizing. Read the typical hospitals guide on wearing this gear and you will see plenty of times where wearing a mask is not necessary. Its about where you are and what you're facing. An extreme example: if you were in a completely remote place with no other humans, would you wear a mask? Probably not. If you're in a hospital about to meet a patient who is clearly expelling bodily fluids? Definitely. The in between is the sketchy area. Do I think masks are useful and would I like everyone to wear one? Yes. Do I think they are the most useful to the average person, and do I think everyone should get one now while hospitals are reporting shortages? No.