I tell people who have said something to me -- politely (yes, hard to believe I know) -- that I have a medical condition which makes wearing a mask more dangerous to my health than COVID and it is against the law for them to harass me or ask questions much like it is against the law for them to harass someone with an emotional support animal. (None of this is untrue, mind you. My PTSD goes into overdrive ...) Only a couple of these folks have seen fit to challenge me further. That tends to not go so well for them as I get out my phone and start very obviously recording (for my lawyer and LE, ya know). THAT seems to speak to them. Thank God.
I rarely go out these days -- it's better for all of us that way. I hate people more and more as time -- and 2020 -- goes by ...
i'm curious which law says they can't ask? i've heard people say this, but the only thing i've seen referenced is with regards to the ADA and that actually states the opposite. Businesses may ask so that they can know how to accommodate an individual's needs. And that stopping the spread of infectious disease is actually a valid exception to ADA accommodations.