I would really like a full door to door with one payment. Put in the destination, one price and get a Waymo on each end. React as best as possible to delays, etc.

The Transit app is great for this kind of stuff and many cities have integrated their transit options under a single payment system so you could actually do this. It can even take into account if you have a bike or not and you can specify stuff like "avoid busses".

Took me a while to understand what you meant by "on each end". I'm guessing you mean as a connection to some public transit in the middle?

Yeah. For example, if I lived in Cupertino, have it manage:

Home -> waymo -> Caltrain -> Waymo -> sf concert venue

For me smoothly