Millennials simply aren't very interested in driving:
If the Millennials truly become the peripatetic generation, walking to the office, the bus stop, or the corner store, it could mean a longterm dent in car sales. It's doubly problematic if they choose to raise children in the city. Growing up in the 'burbs was part of the reason driving was so central to Baby Boomers' lives. Car keys meant freedom. To city dwellers, they mean struggling to find an empty parking spot.
The Dish 