So, to be clear, the problem is now that people are not wearing their masks appropriately or are lying about it?
I'm not sure where you are going or shopping, but there is no way that "half" the people you contact have masks below their noses. Even in my conservative homefront of Farragut, 95% of people I come across are wearing cloth, surgical, or N95 masks.
At some point, have you thought about analyzing all the prior studies and considering that paper, cloth, and surgical masks *might* not have a significant impact on viral transmission?