The United States is massive. Expecting that public transportation will replace cars to any significant scale is to reveal a lack of exposure to the vast majority of the country. Las Cruces, NM for instance — they aren’t going to build a subway and suddenly replace cars. Midland, Texas, Imperial, California — most people don’t live in a tight urban core. In France, outside of Paris — most people have, and need cars. The idea that millennials are all just dying to live in Manhattan is an out of touch myth. Cars as we know them will certainly change, but personal transportation will always be important — as will suburbs where your kid can grow up with an actual yard. Not everyone wants to live in a Hong Kong-style beehive.