> It might make sense on a per-individual or per-trip basis to say that you prefer using a car, but if everyone makes that choice (old used cars are fairly chea

> It might make sense on a per-individual or per-trip basis to say that you prefer using a car, but if everyone makes that choice (old used cars are fairly cheap), it's a problem. A classic case of the https://en.wikipedia.org/wiki/Prisoner%27s_dilemma https://en.wikipedia.org/wiki/Prisoner%27s_dilemma .