Most jobs, not all, can take place inside a city. If you build your cities densely, people can live and work within the city and have all their needs met without the need for a car (see: the great cities of the world)
If you design economic hubs properly, businesses can be located within reach of homes without the need for cars.
If you instead prioritize the need for, I don’t know, a monoculture lawn and separation from lower class people, then you’re choosing to build suburbs. Once a city has built enough suburbs, businesses become out of reach without the use of a car.