I see no mention of climate (the U.S. is mostly hotter than Europe) and shifting demographics towards the Southwest (where it's hotter). Even in these comments

I see no mention of climate (the U.S. is mostly hotter than Europe) and shifting demographics towards the Southwest (where it's hotter). Even in these comments, there are observations contrasting more formal NYC with more casual southern and west coast cities. Makes sense to me. Even in slightly more formal southern towns like Dallas and Atlanta, there is a lot of new growth and new transplants from the north and east.