I agree with the negative effects of pornography, but feel that laws should be centered around facilitating, not forcing, the desired behaviors.
It might be a good idea to bring back relationship classes in middle and high schools. Specifically around issues of communication and effective ways to navigate common problems in romantic (and other) relationships. I believe that men are often drawn to pornography because they feel isolated, and pornography gives them a way to feel like they are involved in an intimate relationship without the difficulties of a real-life relationship.
It’s also important to teach children from a very early age about addiction and how to catch yourself when you start moving down that path, and how to reverse course, including counseling and/or addiction groups that can work on problems together (as the other poster mentioned, addiction is a very important issue that covers a variety of topics).