Walt Disney World and Disneyland typically do not ask for proof of age for children, but they reserve the right to do so if a child's age is in question. At Disney, children under age 3 (0, 1, and 2) are admitted for free, while those aged 3 to 9 require a child's ticket. Because most toddlers do not have government-issued IDs, Cast Members generally rely on the "honor system" and the parent's verbal confirmation. However, if a child appears significantly older than 2 or 9, a Cast Member may ask the child directly how old they are. In rare cases or for specific promotional tickets (like the "College Passport" in Tokyo Disney or resident-only deals), a student ID or proof of residency is strictly required. For the vast majority of families in 2026, as long as you are honest about your child's age, you will not be asked to produce a birth certificate at the turnstiles, as Disney prefers to keep the entry process as "magical" and frictionless as possible.