According to this survey, American parents are A-OK about violence in games. What's wrong with the odd rape or severed head? It teaches kids to respect the American soldier's job, after all.
On the other hand, sex is a no-no. So is kissing between two men.
Survey Says: Parents Prefer Violence to Sex and Gay Kissing in Video Games
But a similar survey for Norway found that these Europeans were the exact opposite.
John Davison: Interesting international view on sex and violence in games