Stupidity: Geppetto sends Pinocchio to school, even though he's been alive for just one night. Geppetto should have gotten Pinocchio familiar with the world around him, such as teaching him what to enjoy and what to stay away from.
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Suggested correction: This is part of the fairy tale nature of the piece. It's how things are and is part of what would be called "emotional storytelling." It's not based around logic as it's not that sort of film. The same regards as to in Snow White after she wakes up, they instantly just know it's time for her to up and leave with the prince. There isn't logic to it as a fairy tale; it is in service to the emotion of the story.