What is the end game for mandatory masking?

When are we allowed to take the masks off?

What metric qualifies your town/city/state/country for an end to mandatory masking? 

This is such a simple question, and one that would be asked in the event of any hyper invasive policy demand, but nobody seems to be asking it.

We are being inundated with calls for universal, mandatory masking of the U.S. population, but the proponents of such a drastic …