Oh yeah, as the population grows and transportation infrastructure grows and planes get cheaper and bigger the whole industry got bigger. More and more people on the move.
Yeah America is a challengingly huge place, and not just geographically. Heck a lot of Americans don’t understand how big it is. You see a lot of people here talking like we have a monoculture, we so don’t. We have 4 different major BBQ concepts here, 3 different names for basically the same sandwich, 3 different names for the same category of non-alcoholic drink. And, once you get west of the Mississippi, a whole lotta nothin between cities.
Oh yes - America does have regional cultures which are quite distinct.
New Englanders, for example, are rather different from Southerners, and they are not like Midwesterners, or Southwesterners or Californians or the people of the Pacific Northwest.
And even among them, there are subdivisions - upper South, Deep South, Texas with its very own regions, etc.
You know all about it much better than I ever could hope to do, I presume, so I‘d rather not waffle on for too long, lest I get thrown off FR for being such an utter bore and insufferable know- it-all😀