I wish we had a POTUS who would fast-track the development of autonomous cars.

[metalbot]

40. Lots of reasons

1. Elimination of drunk driving (which kills 10k people a year and permanently injures many more)
2. Substantially better traffic flow, since autonomous vehicles can route appropriately and take non-selfish actions (slowing down ahead of congestion in order to allow congestion to clear).
3. Car commuters gain many of the benefits of mass-transit commuters (ability to read, surf the web, relax during commute)
4. Eliminate deaths from texting while driving
5. Eliminate deaths from speeding and other forms of reckless driving
6. While certainly not ALL accidents would be avoided, most accidents aren't "accidental", they are caused by someone doing something stupid (poor lane change timing, following too closely and missing brake signals). We can eliminate entire classes of accidents. It's not going to be flawless (and new classes of accidents will be discovered, but you'll likely get to the point where car travel is as safe as plane travel on a per mile basis.

I think the nature of the benefits to self driving cars are very different from your examples (packages, grocery stores without clerks) which are really just efficiency/cost plays. Self driving cars are an actual quality of life change.