The battle for the suburbs is mostly lost, you need a car if you live there.
What the discussion should instead highlight is that with just moderate increases in population density you can escape the need for a car and it ends up being better for everyone. That mostly only applies to new development.
Heck, even if you just made cars second class in new suburbs you could see cheaper housing with equivalent land. Put in a shared parking garage for a suburb instead of putting a garage on everyone's home and all the sudden the amount of sqft needed just to get cars in and out gets massively reduced meaning more room for more homes and an easier argument to make for bus service.
What the discussion should instead highlight is that with just moderate increases in population density you can escape the need for a car and it ends up being better for everyone. That mostly only applies to new development.
Heck, even if you just made cars second class in new suburbs you could see cheaper housing with equivalent land. Put in a shared parking garage for a suburb instead of putting a garage on everyone's home and all the sudden the amount of sqft needed just to get cars in and out gets massively reduced meaning more room for more homes and an easier argument to make for bus service.