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.
I can visualize it just fine... High Density, people stacked onto of each other vertically, small dwellings where you need to shop for food every day or every few days, extreme cold or extreme heat is a problem, as is rain...
Instead i look out to my 3/4 acre homestead, lined with mature tree's and limited density... and say... yes I prefer this. I prefer going to to store every 1 or 2 weeks, I prefer not having an upstairs neighbor stomping around, I prefer not having to deal with stairs or neighbors only separated by a wall...
The same way it is unreasonable to think that less car centric cities would solve all our issues, it's just silly to equate "non car-centric environment" to "dystopian cities where people die on the street whenever there is a bit of cold".
I dont shop at the closest store to my home because I prefer the layout and selection of one that is further away, i know people that take their kids to schools across town because they are better than the one closest to me. (in my area schools are not assigned geographically, we have open enrollment at all public schools)
Cars give you that option, with out it you have THE store, and THE school... sorry but count me out of that
That's true, but most people forget to take into account the cost of the car itself. If you spend 10$ in gas and vehicle depreciation to save 8$ on average on your bill, are you really winning?
When I really need to do a big grocery or to find a specific product which my local store does not have, I rent a car from one of the 5-6 carsharing stations near my place (think ZipCar), it cost me 20$ and I can go where I want. Only, I do not have to pay for a car all the time.
Schools are another topic, of course if you live in a bad neighborhood, it might be problematic, but again with a nice public transportation system, it is not an issue (in my home town, _public_ buses have specific routes for students of a given school, dropping them directly next to the school).
We can always devise a situation where you are "limited" by public/active transport ("I am an ER doctor, what should I do if I get called at 2AM on a winter night to an hospital on the other side of the town to save multiple children lives?"). Sure, in these cases, you should take the car. That doesn't mean that for the overwhelming majority of people, car _would_ not be mandatory (assuming a decent public transportation system and walkable/bikable cities).