I'm not sure what region you're talking about but the world is really huge and varied, in 20 years no way every country will be at that stage of automation.
Seems like the difference between cell phones and landlines implies things like self driving cars will be spread without relying on most people in a region affording them before construction starts.
The fully automated vehicles may be a lot more dangerous in some places than others, but you'll probably be able to get run down in the middle of nowhere.
