Why would you want to stop and switch to public transportation? It's a pretty significant QoL downgrade. If you can afford a car you pretty much always want to.

There is no horizon in sight where shared transportation will actually be an improvement on cars so it's always going to be kind of a futile battle.

I can afford a car but choose not buy one because riding a bike and taking public transport is a more convenient and often faster than taking the car. I don't have to look for parking spots, I don't have to refuel the car, I save a lot of money, I don't have to do maintenance on the car... owning a car just doesn't make much sense here in Berlin if you don't have to transport children around.