It's my personal opinion that the whole 6 feet apart social distancing thing is not why cases have dropped. I believe they've dropped because of the shelter in place orders.
They are two VERY different things.
I don't think trying to keep people 6 feet apart while in open air or large buildings will do much good. Does the virus die instantly after moving 6 feet away from it's host? Who has done the wind speed calculations? If it's windy shouldn't it be more like 12 ft apart?
If this study that was recently done is any indication, 6 feet apart is pointless.
Covid19 cough spread simulation
So if we assume that it's staying 6 feet apart doesn't do much good, well that changes everything. Maybe requiring masks would be less of a logistical nightmare, and more effective.