The adult ticket for Shanghai Disneyland has been purchased in your name and cannot be refunded or exchanged. However, usually, such tickets are limited to users. If you cannot use them, it may not be appropriate to transfer them directly to your son. It is recommended that you contact Shanghai Disney’s customer service to ask if there are other possible solutions, such as whether the user’s name can be changed (if the system allows it), or whether there are other ways to deal with this problem. Usually, ticketing policies will be clearly stipulated, and specific operations need to be carried out in accordance with official guidance.