Only by traveling to places that were developed before cars took a chokehold on the world can people realize how nice it is to live without them absolutely everywhere.
Many Americans get a taste of that when they vacation to Europe. They often choose to leave their suburb and spend their 2 weeks in urban environments like Barcelona, London, Munich, Paris, Rome, etc., that where built for people and not cars, because it's so pleasant to live like that, and because letting cities develop for people first leads to cities that people actually want to be in, with car-free streets, plazas, promenades, etc. (Yes, today those places are also full of cars. But, unlike American cities, their skeletons are people-first and cars are the invasive element.)
It could be argued that so many problems of American life - weight gain, loneliness, fracturing of the social fabric - stem from how we've isolated ourselves in unwalkable suburbs, where there's no spontaneous social interaction because everyone's always in a car, and where our only exercise is the walk from the parking lot to our desk.
What's depressing is visiting developing countries and seeing them start to ape the worst of American car life. Places like Colombia, which I visit often, are building shopping malls, big-box stores, parking lots, suburbs, and freeways, while after almost 100 years of that type of car-first development in America we're only just starting to realize that actually it might not be that great.
Living in such places is eye-opening!
And that's in a quite a few areas from pretty dense single-family urban to apartments to what some might call rural.
You can do it but people don't. Hell, walmart is only 30 minute walk away, but I drive most the time. Probably should get my bike fixed and easily accessible ...
Frankly the heat is mostly why I stopped walking. I figured at first I might just be out of shape as hell, but I decided to take one today while the rain had cooled down the temperature and it was mostly pleasant. Comparatively I tried to walk the same route a few days back and gave up early because I was drenching in sweat, slunched over, could hardly see in front of me and my head was throbbing.
Infrastructure is a big thing too. When I’ve had to walk in less urban areas with little or no sidewalk, walking on grass next to the road with massive cars zipping past you is unnerving.