Americans absolutely freaking love their cars and have no desire to change the drive-thru lifestyle. I can't convince my parents not to feel pity on me when I'm overseas without one, they don't understand and can't understand that I am not merely indifferent, I hate the burden of a car and living in the inconvenient cities that pop up as an result of mass car ownership. The preferences of my friends in their 30s make it clear to me this American preference is not changing within our lifetimes. The lifestyle I want is only available, for the most part, in Asia. A recent long stay in Paris was even quite a surprise for me, I found the population density way too low to enjoy the convenient walk everywhere lifestyle easily found in Shanghai, Seoul, Bangkok, Istanbul etc.
(Unlike some other countries.)
1. Usually already located at a crossroads; you want a mall at a busy junction to attract custom
2. Usually already a local transit hub, since they tend to be a major concentration of jobs
3. Are separated from any pesky residential neighbors by major roads and/or large swathes for parking
4. Have a lot of land in the form of said large swathes of parking
These characteristics actually make them ideal for densification into a more walkable oasis; they already have some mixed uses, and the parking lots are developable without much fuss from neighbors. And you can do the whole thing in phases.
A bunch of malls in the Seattle area are getting redeveloped in this manner.
#3 is a negative. The separation from housing makes them LESS suitable for office space.
Put the two together, and even if the mall is redeveloped into nice office space with room to walk around, people outside the mall have to drive to do so. For people on the other side of those major arteries, they literally have to drive 1-2 blocks to walk around the mall (or former mall).
None of which is to imply we shouldn't redevelop malls into mixed use "urban" hubs. But, we shouldn't assume that redeveloping the mall in isolation will succeed. The surrounding area might need significant changes to fully utilize the former mall zone.
Neighbors in single family suburban homes are more likely to be NIMBYs and block development, so insulation from them is a feature, not a bug.
Also are Americans really unhappy with suburbia?
On the whole it might be slightly trending to the latter.
Yes and no.
I'm an avid cyclist, so follow local traffic and infrastructure plans and related political/governmental issues. I live in a fairly dense suburb about 40 minutes outside DC (near Dulles Airport).
From what I can see, there is a subset of people who love owning a yard and having some of their own space for kids or gardening or whatever. And they like having a garage to store all their crap (and occasionally a car).
But, within that group, there is often a sort of despair (probably too strong a word) about the rotting infrastructure that surrounds them. Potholed roads, bridges literally crumbling, too much traffic, etc. This group pushes hard for more road construction, more sprawl, etc despite studies that mostly show more infrastructure doesn't help (demand always catches up). And they don't want to fund it via taxes.
There is another group that lives in the suburbs by necessity. Jobs are out here, costs are manageable, etc. They'd move to a city, if it were easier/affordable. I fall into this group. I actually sold my single-family home a few years ago and bought a smaller townhouse in a denser neighborhood so I could walk more places. Cost was the same and I enjoy the downsized home/yard, ability to walk/cycle for coffee or beer, and walk to work (thought that last bit was dumb luck on an office move).
And the vast majority are somewhere in between. Mostly ambivalent. Maybe some notion of the "American Dream" (big colonial home, white picket fence, etc), but content somewhere in the middle.
tl;dr - Americans like the cost and convenience of the suburbs, but much of that comes from indefinitely deferred infrastructure investment (though a massive chunk of suburban residents don't actually realize just how badly that spending is being deferred).
Like the center of a neighborhood would be a coworking center and a park, it could be surrounded on each side by a subdivision, and the corners could be commercial/services. That way you'd be able to easily walk to your job if you wanted, and head home to let out pets or have lunch, no problem.
It would require pretty much everyone to move to coworking for it to be viable, though, and you might find out you don't like spending so much time with your neighbors.
Jobs are different since you generally don't work at the nearest one.
And of course we're obese, many people couldn't walk to accomplish errands if they wanted to.
I don't think I've ever been to a city where they decide they don't need cars on their major streets. All of our cities presuppose that enough people will need to drive through it, and everything is much more spaced out because of it.
I'm sure Europe is similar.
Like here's one of Harajuku: https://www.youtube.com/watch?v=_VXKHlhJzd0