Extend the Valet mode to a teenage profile where the vehicle has a limited acceleration, maximum speed limit, and the touchscreen is disabled while driving. It would also have aggressive proximity and collision warnings.
Provide push messages to the parent’s phone app on thresholds that are attempted (i.e. too fast).
Perhaps tie the profile is tied to a special key-fob.
Parents get a report on the driving pattern of the teenage driver would be a bonus (telemetry data may be sufficient to calculate it.
For tracking, Cmtelematics is doing something similar to an iPhone app.
Might not happen until Elon’s children are driving age 🙁