How to disable online games?

I think the child is still young. You can control him to play games, but you can't control his desire to play games. It is not easy for a child to reason with him. If I were you, I would take tough measures, directly disconnect the internet, or delete the game, or use the computer while watching the children. After all, there are a lot of messy things on the internet now. In short, if you don't let him touch them, games will be addictive, especially for young children. Once you are addicted, you will have a rebellious attitude towards your parents.