It seems that they might be heading in this direction. Reducing transmission in any way possible is what many medical professionals are saying. This would be for needed excursions from your home.
The mask being worn by everyone in public is just like shelter in place. One more layer of protection for the individual wearing it and those in their vicinity. If it helps only 10 percent of the time it is a good thing.
https://www.cbsnews.com/news/dr-anthony-fauci-how-americans-can-reduce-coronavirus-death-toll/If a virus hangs in the air for up to 30 minutes, which has been proven as far as I know, and someone walks through that area barefaced, where does the hanging virus go? It will inhaled or cling to your face, clothes, etc. Would it be better to have a mask covering your nose and mouth? Simply using common sense, yes.