Mod parent up. I want to protect children from seeing both porn and violence; in my case I call it "parenting" and that responsibility falls to me (for my kids in any case). Another idea that goes along with this whole "parenting" school of thought is that children should be prepared for the real world, and (hopefully) socialized and educated such that they will grow up learning to think and feel for themselves. Both porn and violence are real world factors that kids will eventually be confronted with and it's my job to protect them before they are ready and prepare them to be (I hope) thoughtful, sagacious, pragmatic, etc. once they are ready.