I was merely saying that for public transportation to be viable again in these cities, someone has to act - either by lobbying loudly and/or by putting their money where their mouth is.

Proposing that autonomous driving is the only way forward sounds pretty sad to me as it doesn't solve the main issue with cars: their environmental impact.

I didn't mean it would be easy to do, nor that it is decently doable to use public transportation in these cities' current state. Sorry if it came out that way.