I don’t think there is a perfect model, but one thing I do know is that any system that has more people taking out of it than there are people paying into it is doomed to failure.
Free at the point of delivery means you'll never be able to meet demand.
French system where you pay and then claim the money back would deal with that.
Last edited by great_fire; 13-01-2022 at 11:13 PM.