You'll see municipalities and then states banning cars starting off using soft incentive based approaches, then harder approaches once enough people switch over.
Many states (red) won't ban them for a very long time.
the impact on freedom to travel will have to be secured and decentralized without any government kill switches.
You'll see municipalities and then states banning cars
Which states? Maybe a few in New England, but I don't see that happening anywhere else. Counties perhaps, but there are rural areas pretty much everywhere, and people are going to want the freedom to drive their own vehicle.
Many states (red) won't ban them for a very long time.
the impact on freedom to travel will have to be secured and decentralized without any government kill switches.