The article is about moving beyond car ownership, not the absence of cars themselves.
Plenty of families don't actually need N cars. They can probably get by with N-1 and summon another when needed.
Also, one car can do multiple errands without a driver, eg drop someone off at work, drop the kids off at school, and then go stage somewhere until needed.
Yet, in the case of France, the number of cars per household keeps rising; the share of households owning 2 cars, owning 3 cars, keep rising as well; in spite of the decrease of the size of households (the number of people per household).
To add insult to injury, car owners have become so lazy that don't bother parking their cars in their garage or their yard. Nope, that's out of fashion, now they park them on the public space: streets, roadsides, side-walks, etc. It's like witnessing an invasion, it spreads everywhere.