> And SF absolutely does have lots of narrow streets. There are a lot of neighborhoods where the roads are only wide enough for one direction of traffic at a time due to parked cars. Either you or the oncoming car needs to pull to the side in front of a driveway to pass. Waymo handles these situations expertly.

That is not a narrow urban road, unless you have about 3 inches on either side of your car. Drive in Europe or NYC sometime.

I have no axes to grind, but I find the optimism of "[X technology] works in [Y very easy condition], so it's going to explode any time now" somewhat tiresome and naive. I have been hearing it about self-driving cars for >10 years now (since the DARPA challenges). Plenty of technologies never leave the garden of that easy condition.