If you feel threatened then stay home, period.
I know of no one that has been infected by someone that has passed by them "too" close when they have been wearing protection. So, if one feels so endangered why don't they just hide in their safe rooms at home until they hear the "all clear" announcement? You are guaranteed NOT to catch the virus if you stay at home. If you hazard a trip out and about, the chances of catching the COVID when using protection is very low.
You are free to live life as you wish. You can hide and live longer, or you can live FREE and take your chances. But, if you hide from life and the boogieman and live a life of fear, are you really living? Your life and your choice.
The other day, I was in Publix shopping in the frozen food section and suddenly realized that I was staring at a woman that was not wearing a mask, but she was maintaining her distance from everyone. I realized that I had not even thought about whether anyone else was wearing a mask until I happened to notice this lady without one. She must have realized I was staring and commented "What?" as if challenging me. I started suddenly, realizing I was lost in contemplation and hadn't realized that I was staring. I replied "Oh, I was just trying to calculate how many carbs I would be consuming if I was to get one of these frozen pizzas." Then I added, "getting old is a bummer, but the alternative is worse." She did not say anything and just went about her way. Personally, I have no problem with folks that do not wish to wear a mask. I do not feel threatened, but I am disappointed that they do not respect the wishes of the business that display a request for mask wearing at the entrance. I had a fleeting thought that some folks should wear a mask to cover their mad expressions that seem to be frozen on their faces.