I'm not sure if people will want to deal with long wait times for their car to drive to them. Imagine watching the end credits roll at a movie theater only to be gripped by the sense of dread that you forgot to call your car during the climactic fight scene and now you'll be waiting half an hour for it to drive from the suburbs.

Don't get me wrong, I'm a huge fan of reducing car dependency, I'm just not optimistic that self driving cars will help.