Earlier quoted context omitted.
Waymo is public transport, but you mean mass transit. People don't use mass transit because it sucks, blaming other modes of public transit doesn't cut it. The design and implementation of it is what keeps people from using it. The good news is automated vehicles will add flexible options for new types of public transport that are between single-trip taxies and mass transit and will lower costs to all kinds of public…
European and Asian nations tend to have perfectly usable mass transit (including developing countries). Sure there are some us cases for cars, but for daily commute its not needed. To add to it mass transit is generally heavuly subsidized that means that less well off people can get to work/school at low costs. It reduces poverty and income inequality.
Driving has high fixed costs and low marginal costs. If you have a car anyway, using it for yet another trip is cheap. If you want to make public transit competitive with driving, you must make the fares low enough. That often means paying a substantial fraction of the expenses from taxes. But why would you do that? Because once a city grows large enough and dense enough, public transit becomes cheaper than car infrastructure. Because it requires less subsidies than driving.