Maybe but I doubt it, I feel like it would be all or nothing in regards to vehicles but who knows, would probably vary a lot. My understanding of the motivation is that it is only partially due to pollution and more to do with livability, comfort, health and that sort of thing.

BYD did just get the largest electric bus order in history from LA https://t.co/YaWN2ZKtBs?amp=1 as part of a green new deal, so you may not be far off in regards to cities moving towards focusing on accommodating electric vehicles.