Cars aren't going away. At /best/ we'll get self driving cars, but we aren't there yet, and even when we get there it'll probably be a bit before they fully kill the dedicated car.
It is reasonable to assume 1 car for EVERY ADULT that MIGHT live someplace, and to then add an additional 0.2 cars for any adult that might thus visit someplace.
THAT is how much parking should be accommodated, not on the street or in front, but probably in a shared community parking garage (with some slots assigned by unit, and others for guests).
The community garage should also have a loading dock and staging area for deliveries and movers; with egress paths that make sense given use for both that and light/mid level construction activities.
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In a separate point, the building codes should be such that when I shut my windows and doors, I don't hear or smell anyone near by me in any way. Even if they're doing something noisy but normal. (Watching a film, the laundry, a shower, etc.) They should also require /specific/ areas for smoking, and anyone smoking outside of those areas (particularly in rented units) should see //HEAVY// fines. I am so sick of opening a window or door and being unable to breath.