You said both "tram" and "neighbourhood" so I'm assuming you aren't in the US. I truly mean no offense, but it's hard to express how spread out even the most metropolitan areas are in the US.

Sure, NYC is one thing. But check out the ~10th largest city, Austin, where Waymo and other autonomous vehicles are (I think) in their largest deployment. Just on a map, or by density numbers, or whatever metric you want.

I'm in Austin, and Waymos rule. I walk most places, bike others, and rarely drive. I very, very rarely get a rideshare (and often get Waymo by way of Uber lottery). Autonomous vehicles exist, are real, and serve an actual need in this very low density city that most people on HN have heard of. I have 3 kids and if I could snap my fingers and swap them for Tesla Robotaxis (Waymos are better and safer!) I would in a second. I would even pay for that to happen.

If you're arguing about some idealistic society, that's one thing. In reality these things are way better than our public transit, and fixing public transit in a place this (not) dense is not as easy as you might think. The last mile is real, and people are coming from every direction and going every other direction and not willing to wait and transfers when these autonomous vehicles already solve the problems door to door so inexpensively.