@clacke @BrentToderian car centric societies make things worse, but having mixed-use neighborhoods doesn't necessarily solve the problem.
I live in a mixed-use neighborhood, I have easy access by foot to many services, but most people who live here don't work in the neighborhood, they work either in the closest big city or in the nearby rich foreign country.
And many parts of both Milan and Ticino (Switzerland) are still mixed use, and especially in Milan you can live without a car, but you need to be able to afford living in Milan (and be willing accept the much reduced quality of living there even if you're paying more).
I got lucky and found a job whose official location is 400 km from where I live, so I only have to go there sporadically :) , but that's something that only certain jobs are suitable for.
And well, office jobs and shops and other relatively quiet jobs in the middle in residential areas are a very nice thing, but having industrial production a little outside the densely populated areas (ideally with a train or tram service connecting them) doesn't sound that bad.