[captainzidgel]

> He's a good kid all in all, actively engaged in competitive rowing, with good grades etc. Plays chess also

If he's actually passionate about rowing, it's unlikely he's going to drop it to play video games all day. If he does, then its only a matter of time until he finds his true passions. I was a real gaming vegetable for years until I discovered some outdoor activities I actually enjoyed. I mostly rock climb now, though I still enjoy playing games.

> And, with real-world war going on in Ukraine, I can't stand watching him actually using those ultra-realistic knives or pump action guns for, well, killing "terrorists" as a recreational activity.

I can't blame you on that one, but for what its worth, I played plenty of violent video games and I've always been a staunch pacifist. If he can't separate games from reality, there's a larger issue at hand.