Sure. I'm not saying that there no use cases. But I don't see the US turning into a public transportation utopia just because there are self-driving buses available. Because the reason public transportation sucks in countries where it sucks is not because drivers are expensive.
But it does suck because drivers are expensive. Seattle is struggling to find drivers. It's a constant battle to identify the most used routes and keep them staffed but that's why there's not a critical mass of riders to pay enough fares to hire drivers.
