Protect from what? I mean seriously. Most of us (guys at least) probably saw porn way before we were old enough and most of us probably didn’t end up as rapists or pedophiles. It’s not a good thing by any means, but it really feels like we’re trying harder to keep sexual material from entering their brains than we are trying to keep them fed, clothed, educated, housed, healthy, loved, and physically safe. Of all the things I mentioned the last seven have a monumentally greater affect on their success and well-being as an adult.