Again, the in cabin camera monitors you and makes sure you are paying attention to the road. Otherwise, how can Tesla be held responsible for idiots? Remember that the idea is to DEVELOP self driving software so that the roads can be SAFER (not 100% safe but safer) from idiot humans.
Welcome to the United States, where consumers built the internet infrastructure that monopolies profit from and fight tooth and nail to prevent communities from providing high speed internet to its residents. Capitalism at its most corrupt: privatize profits and socialize capital costs and losses.