The solution is good infrastructure. That's it.

A 3d use of space can provide short traveling distances to supermarkets, gyms, schools, kindergartens, universities, offices, etc., cheap and spaceous public transport, subways (!!!), walking distances, bike lanes while not compromising on roads for cars.

If you look up the cities with the highest quality of life in the world they all have good infrastructure in common. I live in one of these cities in Europe and I have seen how hostile car-centric instead of human-centric some (not all) american suburbs are.