One scene, two different viewpoints
A toddler’s difficulty imagining what another person can see is not the same as believing that person knows everything. It reflects a developing ability to keep two viewpoints in mind at once: “I know where the toy is” and “you may not know, because you didn’t see me hide it.” The child’s own knowledge is immediate; the other person’s limited view has to be inferred.
That inference draws on several skills. A child must notice what the other person could see, remember what happened, and use that information to predict what the person knows or will do. Those steps are demanding when attention and memory are still developing, so young children often rely on their own perspective as the simplest guide.
Why the mistake can look like selfishness
Adults may interpret the mismatch as a toddler expecting everyone to share their knowledge—or as deliberate insistence that things go their way. But a child can be focused on a point of view they have not yet learned to set aside, rather than making a social demand. The same gap can appear in conversation: a child may leave out information because the listener does not know the background the child has in mind.
Perspective-taking grows through ordinary exchanges. When adults point out what someone else saw or explain why a character is searching in the wrong place, they make the hidden difference in knowledge easier to notice. With experience, children become better at separating what they know from what another person has had a chance to learn.
A small mistake, a useful clue
A toddler’s answer in a hiding game is therefore not a simple measure of whether the child understands other people. Attention, memory, wording, and familiarity with the game can all affect what the child does. The revealing detail is that a child may know exactly where the toy is while still needing help to reason from the searcher’s view.
