@Stuart, our posts crossed, so one further comment...
mainly because some people actually enjoy driving
Trouble is, I would bet a pound to a penny, not many will enjoy driving once autonomous cars are around. My expectation is that Rural speed limits will be cut to 20-30mph wherever the cars are allowed and the few car parks that remain will be closed, on the justification that they are no longer needed.
Those who enjoy walking will also be in for a nasty surprise, it is widely expected that many of the autonomous pods will use the pavement, as did those trialled in MK last year.
I make these gloomy predictions as a person who still very much enjoys both driving and walking.