In most of America, this idea seems to be even less practical than self-driving cars. America is pretty much designed to be a pessimal case for public transit. San Diego, where I live, does invest in public transit infrastructure and has relatively extensive mass transit options (buses, trains and trolleys), and yet public transit is still largely unusable outside of fairly small, specific areas. In order to use public transit, I'd have to walk half a mile to a station and then my commute to work would be four times as long as it is by car.

So when I hear "invest in public transit infrastructure," I feel like it isn't a concrete enough suggestion. Does it actually mean tear down most of America and replace it with a country where mass transit is practical, or what? I'd love never to have to drive again, but merely investing in public transit demonstrably isn't enough.