You do realize that it violates HIPPA to question people because, if they have a health exemption, the person doesn't have to disclose anything. The store has a huge sign clearly encouraging people to wear a masks right at the entrance. They even offer masks for free to anyone that asks. Also, since it is a HEALTH food store as you say, perhaps the concept of simply taking care of yourself and having a healthy immune system shouldn't be lost on you. This "deadly virus" has a 99.96% survival rate. If you spent even 5 minutes thinking for yourself and doing some simple research you would find ample amounts of research and legitimate studies that point to the ineffectiveness of masks. Pubmed is loaded with them. There is also even information showing that masks (specifically cloth masks like most people adorn) are harmful for our health. They create a perfect, moist environment that allows bacteria to proliferate quite easily. So then you're just walking around with that shit strapped to your face, breathing it in. Respect the fact that there are people who prefer to do their own research instead of blindly following advice that has remained inconsistent and has yet to provide legitimate evidence of the efficacy of masks. If you don't like it when someone chooses not to wear a mask then simply don't shop there, but don't blame it on the store. I have been in a lot of places and every place I have gone to there have been people not wearing masks. So basically, if you're that concerned about a "super deadly virus" then you could always use the pick up service that the co-op also graciously offers. That way you don't even have to get out of your car.