I see a lady in the store without a mask, I simply assume that she might have some health problem that could make it difficult for her to wear one, and then I go on with my life.
Of course, in my town, nobody else seems to have a problem with the occasional non-mask-wearer, either.
My personal feelings are-if people want to wear masks, that is their prerogative, pandemic or not.
I absolutely loathe the groupthink mentality that makes people feel empowered to stick their noses into other people’s business.