I suppose the same argument could be used for the prostitutes and the horseback riding on the main beach which are not only illegal but can be harmful. There are many who may say they are wanted, invited and needed. Heck, everyday on the beach I see visitors on the horses so obviously they are wanted. And prostitution isn't called the world's oldest profession for nothing. But where would you draw the line?
If you allow food vendors like Norman and Dean to sell without licenses or inspections, what about the other higglers who are not as responsible as Norman and Dean and may be selling food items that make people sick? Common sense dictates that there needs to be some form of regulation on the vending of food items. Although I still think those HOT warning labels on HOT coffee does go a bit far... (grin)
This can be a complex issue.