Then there’s games like the original “pirates!”. It has an anti cheat that would present itself as a simple question like “do you recognize whose pirate flag that is”. The answer is in the booklet, and if you answer wrong nothing visible happens but the difficulty is cranked so high that the game becomes effectively unbeatable.
I think it’s a concept that’s hard to grasp for people with semi functioning families. Obviously they tend to believe that the model that worked for them is desirable.