I originally typed out a reply saying that if I bought a sure-to-be-expensive self-driving car, I would be disappointed if it made my trip slower.

But then I thought that maybe if I wasn't the one fighting to get into lanes I wouldn't care that my trip ended up a couple of minutes longer, I would just relax and read a book and not even pay attention while all that was happening.

Not sure if that would work in reality though. In my city if a car that was that passive was recognized, people would just take total advantage of it and never let it in, cut it off, etc. I think that I would still get annoyed watching this as a passenger.

The car would have to make sudden stops to avoid accidents every time someone cut it off as well, which would be unpleasant for a passenger.