Okay, so to keep the story short, my husband and I have custody of our 13 year old nephew. He's a good kid overall, his grades aren't bad, he's very respectful, and he helps around the house when we ask. There's just one thing, porn. We are a Christian family with certain morals and believe that porn is harmful to him at such a young age. We have made it clear to him that watching it is unacceptable in our home. I thought I put parental controls on most of the devices in our home, but I found that he was watching videos on his tablet, on YOUTUBE! How can we punish him for watching something that seems to be in every source of media? How can we explain why it's bad for him at his age, and he understands the harm it can cause him later in life?