In my most upbeat, cheerful mood, this is what I see Traveller as.
And, to be honest, there are quite a number of worlds which are at peace for long stretches of time, and blessed with a near-garden world, slightly tainted environment — more likely an irritant or a gradual, low-dosage poison (the equivalent of cigarette smoke, say) — which are able to set up these kinds of homes for the average middle-class family.
With the ground cars, it’s tempting to set it up at TL 8/9, but Traveller antigrav is expensive, so the cars can stick around all the way to TL 15, depending on the perceived need and status of air/rafts. The more interesting question is if those cars are driven my humans or by themselves…
Sadly, most worlds in the Empty Quarter are more influenced by the communal bunker mentality: the full-fledged interstellar tribal wars of earlier centuries have settled down to the occasional, small-scale dust-up by 993 Imperial — see Stellar Reaches #12, page 15 ff, and Stellar Reaches #26, “Basil Tribulation”, pages 63-65 — but you still have to keep an eye on the envious neighbours, and interstellar piracy is still a real issue.
“This is why you don’t get nice things.”