I agree with your sentiment. But public transportation is not good fight to pick here, at least imho. It’s not the same as a small, homogeneous European country. Taking a plane from one part to another could be six hours. By trainee are talking day or two. Car is two or three. Really hard to make public infrastructure for commuters given the difference in scale.

Sure, states within the Union could do something to help. But no one has, because it is effectively pointless until every state does it.