How to convince a game geek who never travels to travel?

Tell him that everything in the game is fiction, and only things in real life are worth grasping. If you blindly invest in games, you will lose a lot of real things and become a person with nothing. You must pay attention to reality and don't always focus on games. And if you go out for a walk, it will help broaden your horizons and improve your personal level, so you should persuade him to go out for a walk more.