It's also easier to do shared housing but part of it is just that people like having their own personal dedicated space to exist in even if it's not the most efficient answer.

That’s a really difficult problem to solve with the built environment being the way it is. Buses get the closest, but to make it usable at times other than rush hour, they have to run empty or nearly empty, which drives the cost very high (although this is often hidden by subsidies). The way to deal with low density transit is automation.

Hundreds of buses on the road. Amazing!

And trucking. But jobs.

So your contention, then, is that Google>Waymo and the other companies should have invested billions not into AV, but instead into funding trains and paying for buses?