American cities didn't always have these heavily car dependent suburbs, American cities were all originally built with walkable areas with neighborhoods full of residential homes and small business were allowed to open in these residential neighborhoods, these Car-dependent suburbs only became a thing after World War 2 after car companies lobbied the government. A lot of people thought these car dependent suburbs would be idea living areas but these suburbs actually turned out to be very unsustainable. Heavily car-centric infrastructure actually costs a lot to maintain, the maintenance of the roads heavily used by cars racks up a lot of maintenance costs, more than what taxes can cover even if you raise high taxes on the super rich.
European countries how ever did not make the same mistake America did. European countries didn't allow car companies to Lobby the government and the government kept the cities the way they are to this day. It is a common belief that European countries are 'socialist' but according to The Heritage Foundation's index of economic freedom, countries like The Netherlands, Denmark, Sweden and Switzerland are ranked in the top 10 while the U.S. is ranked #25: https://www.heritage.org/index/ranking