The child is already 18 years old and is addicted to games, fantasy novels, and the like. What should I do? As a fan of online literature, I think this problem needs to be analyzed according to the specific situation. The following are some factors that may need to be considered: 1. Understand your child's interests and hobbies: Is the child interested in other things? Do you have any other potential interests? If they could understand their children's interests and hobbies, they might be more willing to try other things. 2. Communicate with your child: Communicating with your child and understanding their thoughts and feelings is very important. Try to understand why they are interested in these things and if they have any concerns or questions. 3. Set limits: Set some appropriate limits according to the child's age and interests. For example, you can set some rules with your child, such as playing games or reading fantasy novels for a certain amount of time every day, to ensure that they have enough time to do other things. 4. Other support: In addition to limiting the child's usage time, other support can be provided. For example, they could provide learning resources such as online courses or books to help children develop other skills and interests. 5. Seek professional help: If the situation is very serious and the child's behavior has affected their studies and life, then you can consider seeking professional help. For example, you can consult a psychologist or child psychologist for more advice and support. The most important thing is to establish good communication and relationships with children and help them develop other useful interests and skills.