If he gets a license then he will have had to receive some kind of instruction as to handle food properly/safely and would be subject to inspections (monitoring) by the local government agency responsible for monitoring food safety. If he does not have a license then such local government agency will not know to monitor him
You probably didn't know this, and are just here to take snipe shots for mo gubberming, but his organization
teaches those classes for food safety.
"In addition to feeding the homeless, Love Thy Neighbor operates a culinary training program that Abbott says has helped more than 400 people learn food service skills."
But yeah, more monitoring. Maybe the "monitors" will learn something about food safety from the guy that was doing it for more than the last 20 years without incident.
In this case food handling has not been a problem, but you don't get grandfathered in to safety regs.
Think of the outrage if Grandpa was grandfathered in, and then his flock of pet homeless got food poisoning.
It is to his benefit to have the license for legal CYA reasons, if nothing else.
"I've never had to register my Ford Model A with any newfangled DMV before, why should I start now?" -Grandpa Simpson
While old car owners cannot reasonably be expected to retrofit them with seatbelts, they certainly must register with the DMV and have a drivers license.
Yes, even Grandpa Simpson needs to renew his DL once a decade, just to make sure he's not a hazard to others.
All of your points about how silly local regulations are easily avoided by movement are will taken.
The people who don't understand the purpose and value of local control and federalism have a lot of reading to do!