If the car is driven by a computer at Google, then it can be &quot;hijacked&quot; by the computer.  A few years after mandating that everybody have self-driving cars, the argument will be that certain roads don&#x27;t need to be in the system because there&#x27;s far too little traffic.  After that, it&#x27;ll be argued that Google should be able to divert you away from certain areas of town where there&#x27;s been high traffic or other hazards, without asking you.  Then it&#x27;ll be argued that the government can mandate certain routes in order to preserve the environment or some such excuse.  Then it&#x27;ll be seen as entirely reasonable that all auto &quot;routes&quot; be managed by city planners who want to control noise, pollution, etc, for your own good.  It&#x27;ll be incremental.<p>Fortunately, as you say, there are still a majority of sane people who vote in the USA.  Will that still be true a generation later?