I travel all over the world for work(Though mostly Europe) and my experience has been that Europe is a very diverse place.
Currently outside London where you can absolutely chat with random strangers(I'm from Sweden, so obviously I don't).
For most Americans it might add up to 7-10 hours a week or more.
That's a lot even over a few weeks.
That's not time walking with your kids or dog sniffing the flowers, that's the opposite.
I live in a major city. It is more like ~4 hours/wk for me. The car drives itself. It is very relaxing. It is my alone time for either thinking or listening to podcasts. I am in a nice air-conditioned, HEPA-filtered cabin and I can be on my own schedule.
What?? Caravan or road trip with regular car is a very common vacation in Europe. In France there are tons of free places to stop over the night. In the nordics you can camp anywhere that isn't close to someones house, even on private land. But no I wouldn't take the car instead of a 2-3 hour flight, especially as our cities have excellent public transportation.