OP needs to calm down. I was 8 years old when my I first played my first GTA which was #3 and 10 years later I'm am still mentally stable. If kids start freaking out over GTA its bound to happen whether its GTA or not. 10 years ago kids were the same. I think the common phrase is boys will be boys right.
Just because some of you guys had parents who completely censored everything you watched, played and did as a child doesn't mean you're parents or you are any better at raising your kids than parents who do let their children play GTA or do other shit (like mine did). Don't pass judgement over stupid shit like this. You don't know those people. Who knows that child will most likely grow into a respectable young man.
"Defeating a sandwich, only makes it tastier." - Virginia
