Violence in games

Why is so many violent scenes in games lately? Why are little boys running around killing virtually each other? Why is violent game more successful than non violent? (with little exceptions) I will say, it is because our wolld is which is. What should boy (or girl) do, when they see violence in tv, when they hear about violence in radio, when they see violence in newspapers? I suggest first stop killing real people, before trying to stop killing virtually.