There was a recent article {can't find it right now} which talked about the lack of understanding of the meaning to Restaurant Gradings in New York City. A, B, C etc.
There are many rules which determine a restaurant's grade and having some technical issue could degrade a restaurant at the same time, while having an A grade doesn't mean that the person cooking your food won't pull a funny one.
So your point about "people want regulated food outlets" is kind of like the blind asking for a light.
Food consumption tends to be an individual opinion, especially in different cultures.
Your point about having everyone play by the same rules does make sense and that is what the article is trying to say in some ways.
*fixed formatting