Consider the street closures during the pandemic for outdoors eating. The parking crowd has screeched endlessly about the traffic and parking issues caused by this, but the majority of the populace love these areas now. A bunch of them are actually becoming permanent.
Similarly, the cute, street car suburbs with high walkability and insufficient parking are absurdly expensive everywhere I’ve ever lived. Turns out people like living places that are nice, and that sufficient parking is a relatively minor deciding factor.
Building a new walkable neighborhood is fine. Trying to drastically alter an existing neighborhood is nearly impossible.
Of course, the counter argument is “but Paris has a good metro system”, to which I say maybe we should fix that.