In my job I talk to hundreds of young people 21-25 every week ... I see why he thinks that. The majority of them don't own cars, don't really want a car. They hardly have the mental capacity to pay their rent, owning a car, paying insurance, fixing a car ... they have a hard imagining it's possible.
They are FAR more concerned with their social lives, their phones, what they are wearing. They've been taught cars are evil, wasteful and unnecessary. When I was a kid, about 90% of young men thought a car was absolutely essential to their way of life, now it's about 40%. They dream of living in an apartment in NYC, dining, going to shows and concerts, flying or uber when they have to go somewhere.
"Driving" to them is not fun, it's a pain. They'd rather take a train, or have someone else drive etc. Amazing how many of them don't even have a drivers license. A good percentage of them only have a license so they can get into bars.
On top of this, governments will continue to make it more, and more expensive and difficult to own a vehicle. I would say in 30 years, in this country you will have to "show need" to be allowed to own a vehicle over a certain weight. Business, rural address, agriculture etc. Cities will by then have banned fuel burning vehicles.
Hopefully battery technology will change this possible outcome. If they get power density to about twice what it is now, practical and powerful electric cars will be a real possibility. Four times what it is now, and they would perform like a gasoline powered car as far as range, speed and cost. Only if you don't use the heat on a winter day
And only if they totally rebuild the entire electric grid to charge millions of electric cars using trillions of amps of power every night when they plug in.