I've found the challenge isn't so much for them to understand the rules as much is it's holding their attention with something not as instantly gratifying as the other entertainment they are used to in apps and video streaming.
Ah, my siblings and I were only allowed an hour of screen time a week when we younger. So that wasn't really an issue. I think an hour a week is a bit extreme, but I definitely intend to put strong limits on my children, especially when they're young.
