Comment: I think a first good step is

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I think a first good step is

I think a first good step is finding another interest aside from video games; I dont mean cutting them off completely or anything, just that video games are not going to be the only thing in existance.
Yes, I used to play alot of games and I still play, although not nearly as much. I had other interests though. If he isnt interested in something, he probably wont get into it and shoving something enough will turn him off to it.
One thing I might suggest though is to get him thinking about his future and how the world will be in relation to him.

To climb the mountain, you must believe you can.