I'm looking at the friends of my kids - all in their late twenties / early thirties - and they seem to be running fewer cars that "back in my day."
Running fewer, or no cars, driving shorter distances, flying instead of driving, and greater use of Uber, e-scooters, bicycles, and public transport. Thanks, in part, to SadIQ Khan, taxes and parking restrictions, but also due to fitness, cost, and ecological concerns.
And I get the same impression looking at the shenanigans around the school run. More walking and more use of bikes - with small kids on the back, or on separate bikes when bigger.