I agree that we should build sidewalks and (protected) bike lanes to go everywhere cars can go. If we do this, I still expect it to cost less than the correspo

I agree that we should build sidewalks and (protected) bike lanes to go everywhere cars can go. If we do this, I still expect it to cost less than the corresponding road network built for cars. I also don't think in this utopian hypothetical that people would choose to drive their car every time simply because the road cost more.