Me. It would honestly be one of the biggest life improvements technology could possibly provide me given it was really and truly autonomous. The amount of extra time it would grant me as well as the amount of driving/traffic stress it would alleviate would be such a huge positive in my life.
Me. I've lost enough good friends because of bad drivers. It doesn't take much honest analysis to realize that humans can never be good drivers, so I want to take their car away from all.
However in today's world there isn't a good option. Even if we would put in arbitrary subways, there are still jobs [like plumbers[ that cannot reasonably use transit. Thus self driving cars must be a part of my better future.
1) sleeping/reading/etc whilst driving long-distance
2) getting home from the city after drinks
3) pick up kids from school/practice (this would be a major time saver)