Public transit is cheaper and more accessable. It would be quite easy to make it profitable. Private transportation is more expensive both on the production side and infrastructure side. The auto industry did a lot of scummy shit in order to make it profitable. In the US, they bought up and shut down just about every public transport corp in order to force the public to buy cars and force the state to build infrastructure.
Buying a new car is not better than keeping an old one (lemmy.world)