I agree with Oweful. People don't trust what they don't know.

I think perhaps porn and alcohol are more established evils than GTA. People are more scared of what they do not understand.

We need to be careful here, because without keeping an open mind and thinking about the various possible contexts we wind up no better than the parents who actually do think that GTA and other video games are the devil.

The question is not very specific and somewhat vaguely worded. Perhaps many parents have children who are 10 or under and can't see them getting there hands on beer or pornography at a friend's house, (and at 10 and under, most kids don't care so much about porn and beer), but can certainly imagine them playing a violent game like Grand Theft Auto. That's just one possibility.

While many parents really don't have a clue when it comes to video games, at least the parents who visit that site are taking a step in the right direction by checking out the site and trying to learn.