America is not a single unified entity. All it takes is one trucking business to outcompete another for all the trucking companies to follow suit in the following decade.<p>As for individuals, the government might gives tax breaks or ban the things. I think it is most that likely early adopters will use them and brag to everyone how much they save on fuel and airline tickets and how more (work, reading, video games, etc... ) they can do while travelling. Of course there will be holdouts, but they will be quickly outnumbered.<p>Eventually so few manual drivers will be on the road that they are the exception and 99% of the accidents will be their fault. Then states will start banning driving manually.