G-CTPN, I agree with the pro type demo video on the personal screens most aircraft now have. Language selection and a few multi question answer to be able to move onto the entertainment selections of the unit.
Leave the carry on, Do not inflate life jackets inside, be quiet and listen to CC instructions and the like.
This before take off and again prior to landing, it will need to be graphical enough to show that it can kill if not followed (CC can override and go to entertainment for small kids if required).
If people saw the bad that can happen, the will more likely comply but some never will. I also agree replacement in full for loss but would need registration somehow.