Yes, your 2-year-old can absolutely wear a MagicBand, and many toddlers find them quite exciting as part of the "Disney experience." While children under the age of 3 do not require a park ticket or a park reservation, a MagicBand can still be linked to their profile in your My Disney Experience account. This allows them to use the band to "unlock" the door to your Disney Resort hotel room or to interact with certain "magical" elements throughout the parks, such as touchpoints that trigger personalized sounds or visuals. Disney MagicBands are designed with a "tear-away" outer rim that makes the band significantly smaller to fit a child's tiny wrist comfortably. If you are concerned about them losing it, you can also purchase "Bitbelts" or specialized security sleeves that keep the band from unlatching. While not functionally necessary for a child who doesn't have their own Lightning Lane passes, it serves as a fun souvenir and makes them feel like a full participant in the family's theme park adventure.