Cars are also a classic example of socializing losses and privatizing gains. Taxpayers build and maintain the roads, air pollution and carbon emissions affect the global climate, and pedestrians and cyclists are driven out of public space in fear for their lives, but at least you can get point-to-point between your house and Wal-Mart. There are ways in which driving will always be "better" for the individual driver, but only in a fundamentally selfish and antisocial way.
>For streetcars and light rail to be effective alternatives to driving they have to be grade-separted, and that means fewer lanes for cars.
Yes, and setting dedicated right-of-way for public transit makes it faster, which should compensate for at least some of the reduced drivability in the overall navigability of the city. I think this counts as making transit better first (or at least at the same time).
When I lived carless in Chicago (2001 - 2006) it was only possible if you were childless and lived in a small number of densely populated north side neighborhoods (which does not include Hyde Park). Interestingly, the car sharing services are changing this — cabs generally avoided anything but same wealthy, dense neighborhoods. Uber and Lyft serve much more broadly. Anecdotally, in my neighborhood, the number of cars with a Lyft or Uber sign is astronomical - I once counted traffic for 30 minutes and 43% of vehicles that passed my residence had a car sharing sign in the window.
Between long-haul, low-friction car hiring services (Zipcar) and short-trip, low-friction car hiring services (Uber, Lyft) I think carless urban life in Chicago is vastly extended to everyone with a good paycheck and no children.
Eventually this will be solved when the new airport opens along with its own S-Bahn station. Any year now...
And you have the experience of using transit on what's generally considered a Top-5 system nationally! The transit experience elsewhere is often significantly worse than yours. We have "urbanists" here trying to block cars in our tiny little city, where a 10-minute car commute takes 90 minutes by bus (a bus which often does not run on nights, weekends, or holidays).
I totally support trying to be more environmentally friendly, and increasing density to do that, and making places more pedestrian friendly. But we really need to come up with some real, functional mobility solutions to do that. Telling folks to "walk everywhere" simply isn't a solution, for the same reason we haven't shut the internet off and told people to "mail CD's everywhere".
No amount of banning cars is going to magically make bad transit better -- we need to start building good transit first.