If you are that prone to addiction and unable to take control of your own life, then you shouldn't have any rights, let alone the right to sue someone else for it. If you don't lead your own life you need to be locked up in some institution where your life is lived for you. Animals eat any chance they get; they can't help it and they have no control over it. But I don't see us giving them any kind of legal power. Why should it be different for someone who can't stop playing a videogame, something that doesn't even cause physical addiction?
Yeah, proceed with the "you're an asshole" comments. I don't care.