Honestly, I cannot wait for autonomous cars to become mainstream and take the labour out of work commutes - sit back and relax, catch up on news while you are being driven. However, you are quite right - there needs to be a decent adoption of the technology to get a lot of those unpredictable bozos off the road. Then again - computer reactions are probably faster to react but need to get really smart to predict.

Snow called. It laughed at your comment.

I'm not sure unpredictability has anything to do with it. With autonomous vehicles you're talking about recognition and reaction. Once you get recognition down computers can easily react faster. In fact, predictability then comes into play. A computer won't be drunk, won't panic, won't be too inexperienced, too old, won't be reading (it might but can multitask better than us), putting on makeup, eating, texting... The computer won't be doing the vast majority of the things people do that cause accidents. The occasional glitch aside they are far better than we are.

Its enjoyable when there are no cars on the road, what about in heavy traffic? Or if some mornings you just wanna chill and drink a coffee on your way to work? Or...if some event happens and you wanna watch the news during a long journey? It's nothing but a good option. Just in case. Heck what if you break an arm?