Whats to complain about?
1) Wear a mask if you are concerned. Its magic and protects you from all harm. Go ahead and play in the street, you will be protected.
2) Sit the dog. You are providing a service for money. Do your job. you are a dog sitter, not a social commentator.
3) Take your money. Keep your mouth shut, smile behind the mask, Be a cheerful worker.
See, serving others for money is easy. Their personal beliefs are not your concern. Just do your job and collect the cash. Than write a bouncy at DU.