A big issue with people understanding driving automation is it's not necessarily all or nothing.
A lot of driver-less features are already on the market (not so much for MH's but they are a very small market). Adaptive cruise control, lane assist, etc...are all features that are out there and working. I got to ride in a driver-less semi 3yrs ago on an urban freeway open to traffic (not a closed course).
The biggest hurdle to driver-less cars is not the technology but the liability. Yeah, there will be failures but for every computer caused failure, if you eliminate 10 human caused failures it's a net win. The problem is the lawyers will be all over any failure in the systems until it moves mainstream. Eventually though, it will be the lawyers vs the insurance salesmen. Once they have the data, insurance companies will give huge discounts for automated cars because they so much safer that it will drive the market.
The second biggest hurdle is market penetration. Given that it takes 15-20yrs for the fleet to turn over, even if every car produced from today on is fully automated, it will still be a long time before they are all converted over.