Because I don’t view it that way as an actual user of the system. I know I am still in full control of the vehicle as is any driver using it. Merely tapping the brakes is hardwired to return control to the driver. The system also has many controls to montior driver attentivness and alert or disable itself if the driver is not attentive. Recently folks have been kicked out of the beta program for lots of reasons so they are monitoring this closely.