personally speaking my gripe with public transit isnt last mile (getting to the bus&#x2F;train stop) its the stopping and accelerating at everyone elses stops along the way. a 10 minute drive becomes 15 mins because suzie expects me to stop at her work and johnny wants me to stop at his gym. Wasted time. 
single passenger (ie very small) autonomous vehicles seems like the best fleet. Now the hard part of getting people to accept them socially. (eg: &quot;I look like a wimp in that small thing, I want a hummer&quot; or what have you)