I don't disagree with you at all. Problem is that what this would cost to implement across the country is not likely to be funded and supported by tax payers any time soon.
What I would like to see and would make happen if/when I have the capital is smaller "downtowns" around the city. Draw people and traffic away from the current city center and some of those spaces could be off limits to cars.
Some of you really need to brush up on your history and get your head out of the clouds. We can definitely have spaces and communities that are better and safer for people to walk and bike but we are never going to get rid of larger vehicles, period, the end.
As for my situation. I'm going to be blunt here. Fuck no. I'm not going to take the bus to Costco and drag that much stuff on the bus and then have to carry, drag, whatever, fuck knows how far from the stop to my house.
I'll say this and I'm done. We have never had cities like we do now that were based on walking/cycling. First it was walking combined with horse back or camel, etc and then it was horse and buggy and then trains and then gas powered vehicles that could haul more and go further without need for rest.