I think the issue is slightly misguided as well, but not quite in that way. I think it's sort of natural that the idea of a merged driver and driverless vehicle

I think the issue is slightly misguided as well, but not quite in that way. I think it's sort of natural that the idea of a merged driver and driverless vehicle lanes will eventually vanish, and sections of highway and city roads will eventually give way to entirely autonomous solutions. Segregating the driving population in this way removes a lot of the concerns, since now when faced with the issue of "wayward child in road", a single car doesn't have to make a decision, but instead, collectively cars decide how to mitigate the situation. This does come with quite a few caveats in regards to road surveillance and infrastructure and legal turnabout, but it makes a lot more sense than trying to merge the two completely different styles of driving. Essentially that is the problem that will cause accidents; pretty much everyone who drive should know that traffic patterns that deviate from what is expected and currently existing on the road are common causes for accidents. Trying to merge two completely separate types of driving just seems like a fools errand, though I do understand that the alternative would probably be a bit too much for the current public and governments. Ultimately though, I think that while the ethical concerns are real, they become greatly diminished along with the natural evolution of where autonomous cars take city infrastructure.