>If wearing a mask is a medical issue, then advising someone to wear a mask when you are not a licensed physician and aware of the person's pertinent medical history amounts to felony practice of medicine without a license.
Sorry, but those laws only seem to apply when you're going AGAINST the medical establishment or trying to profit. It's a novel argument, don't get me wrong, but you must be a very, very young litigation attorney if you think this is going to work.