That is true in isolation, but the reason we study problems like this one is to try to gain insight into our society (or our minds) and in our society, toddlers and people with dementia have guardians that make important decisions for them. Consequently, even after your comment, I'm still struggling to see how this toy problem or game sheds any light on anything I care about. Contrast that with prisoner's dilemma, Newcomb's problem or the ultimatum game, which sheds a lot of light.

But this is HN, so people are going to discuss it just because it is fun to discuss it.