In the US, moving away from cars is a decade+ project. The alternatives are bicycles, trams, ebikes, walking, trains, busses, and subways.

All of them require substantial zoning changes and a change in focus from transportation departments from car capacity to people capacity and safety.

Most people in the US can't feasibly not drive. A good start are things like my neighborhood. I live 1.5 from a shopping center with grocery store and other essentials, but have to drive there. It would be a minimal change and cost to connect a few neighborhood streets to the back of the shopping center or finish the sidewalk/bike trail that abruptly ends half way there.

Another good start is giving tax breaks for employers that do 32 hour work weeks or even 4 10 hour days to reduce driving.

Another idea is allow for small general stores in residential areas.

Another idea is HSR on easy routes like LA to Las Vegas.

Another idea is trams along long strips with lots of foot traffic like public beaches and Las Vegas boulevard.

Another is to add bollards in cities with bike lanes that are just painted lines on the road so people feel safer using them.