See, this isn’t actually logically sound.
It implies that people are too stupid to use masks, but are smart enough to perform social distancing correctly.
Also, it ignores the fact that the virus can actually exist for hours in an aerosolized form. Someone can cough in an area, and you could just walk through it hours later. It doesn’t matter than no one is near you at the time.
Again, the point of most masks is not to protect the wearer.
They function as a containment for the viruses that come out of an infected person’s mouth. They also prevent an infected person from touching their face, transferring it to their hands, and then transferring it to other surfaces.
Ideally, you would just have the social distancing rules we have now, but also wear masks.