Maybe the best system will be educating people to take driving as seriously as they should.
100% agree. Another area Tesla has taken the less safe approach. At the very least they should require drivers go through a "Pre-flight safety demonstration" at least once; before AP can be activated (this can done through the Center Console, App or Online). Activation per driver profile.
e.g. Segway requires safety training... just to activate a 30lb scooter.