I agree, trains are not enough to replace cars, you need much more variety. Buses are typical, but still problematic if you're pushing for small streets and ped

I agree, trains are not enough to replace cars, you need much more variety. Buses are typical, but still problematic if you're pushing for small streets and pedestrian areas. Bicycles are an obvious addendum, but still not enough to cover all needs. But the evolution of personal, small-scale, lower-pollution vehicles is happening at a good pace, and I'm confident we'll have good alternatives. Your point stands, though; a city can't think of replacing cars with a train and calling it done. Cars pack a tremendous combination of flexibility, speed, weatherproofing, isolation, etc that no other method of transport can rival by itself.