1. Age verification problem: Netease requires users to verify their age on the day of adulthood. If the user fails or fails to pass the verification, the system will default to underage. This is to comply with relevant laws and regulations and protect the rights and interests of minors. Expansion: Age verification is a common measure to ensure that the content and services on the network platform will not have adverse effects on minors, and it is also a way for the platform to fulfill its social responsibilities.

2. Data synchronization delay: Sometimes, users have verified their age on the day of adulthood, but the system may need some time to synchronize the data, so minors will still be displayed during this time period. This is a temporary problem. After the system is updated, it will automatically display adulthood. Extension: Data synchronization delay is a common technical problem, because the system needs to deal with a large number of user data, so there will be some delay in some cases.

3. System failure or error: Sometimes, when Netease matures, system failure or error may occur. In this case, users can contact Netease customer service for consultation and solution. Expansion: System failures or errors are inevitable, especially on large-scale network platforms, but the platform will try its best to ensure the stability and normal operation of the system, and also provide corresponding customer service support.

It should be noted that the above is only one of the possible reasons, and the specific situation needs to be judged according to the actual situation. Users can refer to the official instructions or contact the relevant customer service department to get more accurate answers and solutions when they encounter the problem that Netease Adult Day shows minors.