Quality of life is subjective. There are people that think cities are absolutely oppressive due to the crowds. Similar to how you would feel about sharing a bunk.
Edit: What I mean is that, if negative externalities of energy and resource use were priced in, most people couldn't afford to live in the suburbs. Or at least, not in the manner that they've been accustomed to.
Depending upon the definition of "negative externalities", this may be true for most of the developed world.
Maybe the Amish were right after all ..
Technological development is on a path to AI, I think. People have been dreaming of it for at least a couple thousand years.
You say so. Gasoline is cheap and roads need not be first class to support travel.