I’m actually really really tired of the excuses.
They don’t let you into a store if you forgot your pants, so don’t forget your mask.
No one cares that shoes are painful and uncomfortable for me so I had to spend a ridiculous amount of money on shoes that hurt me slightly less because they’re mandatory to wear even though bare feet don’t kill people.
If you have a medical reason you can’t wear a mask, then you have a medical reason not to go into a store at all, and the reasonable accommodation as required by the ADA is curbside service, not your right to endanger everyone around you.
There’s no valid excuse to go into a public place with no mask. Period.