You are making an incorrect assumption. When Tesla released their original Autopilot, it was a no-charge SW update for all cars equipped with the necessary hard

You are making an incorrect assumption. When Tesla released their original Autopilot, it was a no-charge SW update for all cars equipped with the necessary hardware (which was all cars built within the previous xx months). Thus, the drivers with Autopilot capability were driving the same commute in non-Autopilot capable cars the day before. There was no customer selection based on perceived utility of Autopilot.