I am an American. I have lived without a car for a lot of years. From what I have read, Millenials are putting some pressure on society to make things more pedestrian- and transit-friendly. And even with a car, I don't think that accounts for the entire 200 times as much consumption (a figure from a few years back, I don't know what the current figure would be -- it was given solely to make the point that people in developed countries can cut back modestly and have more impact than they think).