File this under “No Shit, Sherlock!”

Although it is nice to have evidence to support the obvious.

Limited mobility due to living in a city without a car -> maybe look at the correlation between car-centric city planning vs. pedestrian-centric + increased reliable public transport and satisfaction instead.

I have to say, as much as I want to hype up the headline, the other user is correct. The graph in the article shows that people who use a car for <5% of trips are quite unhappy, while everyone else has roughly the same happiness level, within 0.1 happiness points (whatever that means). Given the auto oriented nature of the US, we can assume the people using cars very infrequently are doing so not because they live in walkable areas, but because they cannot afford a car.

So really all the study shows is that it sucks to be poor.