When in CA, I’ve seen all kinds of “food trucks” lined up near business areas / buildings, particularly during breakfast and lunch hours. Though I’ve never bought anything from them, I wouldn’t say that the prices are “cheap”, and from what I was told, some of the trucks provide freshly made “gourmet food,” from lobster rolls to specialty burgers or steaks.
Could be that it beats “brown-bagging it” or waiting in line in cafeterias / sandwich shops / Starbucks...
Food trucks are a “thing” even in areas without a minimum wage. Atlanta has tons of them, for example. And these are not at all your construction site roach coaches from days of yore. I’ve had wonderful lobster rolls, burgers, tacos, sushi, etc. from food trucks.
Our town has one evening a week from early Spring through late Fall where there is a food truck event at a city park. It is quite well attended.