Imaginary armor protects nothing. Yet the knight's costume can support a different kind of preparation, inviting a child to consider what someone else knows, fears or intends before deciding how to act. The distinction matters enormously. Not in the cardboard shield but in the shifting viewpoint lies the educational promise of pretending to defend a castle.
Pretending is not kindness. When children assign roles and negotiate what happens next, they can exercise theory of mind, the capacity to understand that another person's beliefs and knowledge may differ from their own. A dragon needs motives. If one player treats the creature as frightened rather than wicked, the story offers an occasion to reconsider whether charging at it makes sense. Such opportunities prove little. Research linking pretend play with social understanding does not, by itself, establish that costumes cause empathy, especially when language skills and family interaction may also influence both.
The negotiation deserves attention. Adults can invite children to explain why a character refuses a rescue or wants the treasure, while leaving room for answers that complicate the hero's preferred version of events. Switching roles adds friction. Taking the dragon's part may call on inhibitory control, because the child must resist the knight's familiar response and follow a different character's intentions instead. No virtue is guaranteed. Perspective-taking can help someone understand another person without ensuring compassion, and physical safety still requires adult boundaries when a pretend battle becomes rough. The shield remains cardboard. Across it stands someone whose story the knight has not yet heard.