That is nothing new. There have always been nomadic peoples.
In the 1960s and 1970s [and for decades before and probably still today] in agricultural areas, nomadic people followed the harvest routes. They worked in the fields to harvest crops. When a field was cleared, they moved to the next. When an area or region was cleared, the moved to the next.
It was, and probably still is, a way of life for many in ‘fly-over-land’.
I ran across a nomadic couple in the fall of 1975! The first such type of people I had met. I was working in a paper mill in the high desert of Arizona where a new powerhouse was being built. This couple, probably in their fifties at the time, had bought a large fifth wheel trailer and turned it into a mobile restaurant. They would travel from construction site to construction site bringing their excellent restaurant business with them. The construction workers loved it — far better than a ham sandwich in a lunchbox or a cellophane wrapped “burger” heated up under a heat lamp (pre microwave days!). I still can taste her incredible chili con carne.
Of course, all the steelworkers, millwrights, boilermakers, electricians, and laborers were nomadic, too. It’s a huge unsung workforce that nobody in America sees, but they build every big project that keeps the USA humming. When you are driving around, stop and think who builds and services all the factories, power plants, cell towers, and refineries across this great land. The workers are almost always hundreds or thousands of miles from home.