Comment by nine_k

This only works in neighborhoods that are veritable city blocks, with buildings several stories tall standing close by. Not something like northern Houston, TX; it barely works for places like Palo Alto, CA. You cannot run buses on every lane, at a reasonable distance from every house.

The point of a car is takes you door to door. There's no expectation to walk three blocks from a stop; many US places are not intended for waking anyway. Consider heavy bags from grocery shopping, or similar.

Public transit works in proper cities, those that became cities before the advent of the car, and were not kept in the shape of large suburban sprawls by zoning. Most US cities only qualify in their downtowns.

Elsewhere, rented / hailed self-driving cars would be best. First of all, fewer of them would be needed.