Disneyland typically operates on an "Honor System" for younger children, but they do have high-fidelity protocols to verify age when suspicion arises or for specific "High-Fidelity" discounted tickets. For children under the age of 3 (who get in for free), Cast Members will rarely ask for proof unless the child appears significantly older. However, for "Child" tickets (ages 3–9) and "Adult" tickets (ages 10+), if a guest is using a child-priced ticket but looks like a teenager, Disney reserves the "High-Fidelity" right to ask for a birth certificate or passport. In 2026, the high-fidelity MagicBand+ and My Disney Experience app have made age verification more automated, as birthdates are often linked to the guest profile during the ticket purchase. For Florida or California "Resident" discounts, high-fidelity government-issued photo ID is strictly required for everyone over 18. Generally, for a high-fidelity and stress-free entry, it is a "High-Fidelity" best practice to have a digital copy of your child's birth certificate on your phone just in case.