Where I'm from if you have the choice you avoid public transport because it's not very practical: buses are crowded and trains aren't flexible enough.
Overcrowded busses and trains are pretty strong indicator they’re doing something right.
In the US a “frequent” train service is every hour. In Europe a frequent train service is every 20min. In a major EU city, it’s every 90 seconds.
The US isn’t just an extreme, it’s an entirely different, almost incomparable, ballgame.
That being said, I'm in Europe and I typically cycle at least 1h per day from/to work/shopping/etc.
I'm willing to bet $100 that if you buy the pedometer and compare both commutes, the bus commute will mean that you have at least 2x the number of steps when you commute by bus versus when you commute by car (for the actual commute).
Actually no.
With a car, you get into the car outside your house, and you typically aim to park the car as close to physically possible to your destination.
With public transport, you have to walk to the nearest stop near your house, and you have to walk to your destination from the destination stop.
In addition, with trains you will have the opportunity to walk up and down stairs.
You might also walk to run errands around the local area, for example, walking to/from grocery shopping with a few bags, instead of driving to the supermarket, dumping the bags in the back of the car and only walking/carrying the limited distance between your car and the kitchen.
You might also opt to walk a slightly longer route if for example it takes you through a local park.
I would say that in France (and Europe generally) they are only true as you (unfortunately) move down the socio-economic scale.
My experience of Europe is that people who can afford it generally do eat well.
As for the driving, I'm not sure I agree. For a start, most US cities barely have any public transport, which automatically pushes people to get in the car (either due to laziness or due to distance). Meanwhile in Europe there are normally plentiful public transport options except for the countryside.