I'd say one important point is that, in many places, public transportation is inadequate, completely overfilled, or both. If people are expected to move from ca

I'd say one important point is that, in many places, public transportation is inadequate, completely overfilled, or both. If people are expected to move from cars to public transportation, many places just don't have the infrastructure to accomodate that transition. I live in Cologne. While we do have public transportation that allows you to reach most places, it's already at a point where the city wouldn't be able to cope with eliminating cars. Car-sharing, escooters, etc., these could be considered necessary extensions to public transport and enable car-users to transition, even if these options aren't entirely as green as using trains or buses would be.