Could you live without a car?
Reya al-Salahi from London asked herself this question when she moved into a car-free development, but over the past year she's been fine.
Lil Boyer from Dorset says she can't use rural buses because they are "rubbish" - but she's embarrassed to drive so much.
They are part of a trend of young people going cool on the car.
In the 1990s, 80% of people were driving by 30; now this marker is only reached by 45.
Men under 30 are travelling only half the miles their fathers did.
The Commission on Travel Demand says this should lead to a government re-think about travel priorities.
It points out that people in general are driving much less than expected:
- People are travelling 10% fewer miles than in 2002 and spending 22 hours less travelling each year than a decade ago.
- There has been a 20% reduction in commuter trips per week since the mid 1990s
- Growth in car traffic has slowed. In the 1980s, it grew by 50% whereas in the decade to 2016 it grew by 2%
Yet BBC News has learned that next week the government is likely to forecast a rise in traffic of between 20% and 60% by 2040.
It will predict that, collectively, drivers will be doing up to 400 billion miles a year.
That, in turn, will increase pressure for more spending on roads.