Technology

I'd argue that Amsterdam isn't a great example, as the infrastructure of that city was largely built before the advent of automobiles, then converted to support a more Americanized design that was vehicle-centric, before finally realizing, "Hey, we're Dutch, not American, we need more space for our bicycles!"

If we're discussing American infrastructure designed in the 20th century, it seems to be pretty difficult to convert because the physical structures of both the transportation infrastructure and the destinations people want to visit are not built densely enough to make going without a car a top tier option for most people.

I mean this broadly, not to say that there aren't opportunities to start moving this in the other direction, but emphasizing that changing the focus to downplay the importance of vehicles will be neither quick, cheap, or easy.