you are seeing big city versus smaller city living.
go to any large city in the US and you'll see the same thing.
And no, SLC is not a large city.
go to LA, Chicago, NYC, Boston,Miami etc and its very similar.
people in big cities are usually stressed out more (Or so they believe) and therefore usually put more pressure on themselves and pay less attention to others....
it happens in many places, you just happen to be noticing of it as you are in a new place.