Playing the devil's advocate if I may - why would you oppose e.g. an internal, offline system that monitors your eyes for being closed and can save your spouse and kids from dying in a car crash if you doze off during a long night drive, by alerting you / safely stopping the vehicle?

I saw a similar reaction to Volvo's announced plans for such tech (it was a YouTube video) - it seemed to be a completely offline system, but people still read "camera" and reacted that they don't want "someone watching them" in the car.