Excellent editorial yesterday:
https://www.nytimes.com/2020/07/27/o...gtype=Homepage
My position is simple: I don't want to make you sick in case I'm a carrier of COVID-19 with no symptoms. And I don't want you to make me sick in case you're a carrier. The most recent research says that transmission through the air is real---summarized here by an engineer who studies aerosol virus transmission:
https://www.nytimes.com/2020/07/30/o...gtype=Homepage
Hence I gladly wear a mask for your protection, and in hopes that you will protect me in return.