While I certainly do not trust any existing or near-future self-driving cars, I also don't enjoy regular driving. So conceptually, I am in favor of self-driving cars over having to manually drive. In practice, I don't really like being in cars at all, and so I live in a city with a subway and can walk most places.

Same here, but I trust humans, including myself, even less...

I can drive for hours with the Volvo lane keeping on. It’s not that I’m not paying attention; but not doing the little micro adjustments to speed and lane keeping actually leaves me much more refreshed at the end of the drive.

Yep, drove (my wife did the driving) 2000km a few days ago with almost only highways. That used to be tiring; now with lane and traffic assistance it is much less tiring. On the highway you basically have to do nothing.