Every part of this recommendation is too broad. "teenagers aged 13 to 16-18" is way too broad a category. What developmental characteristics are shared among t

Every part of this recommendation is too broad. "teenagers aged 13 to 16-18" is way too broad a category. What developmental characteristics are shared among that entire group? Which of those characteristics make an individual "too vulnerable" to benefit "safely" from "social media"? Are those traits really unique to children, and not adults? Is the use of "social media" itself entirely separate from learning how to "safely" interact with "social media" later? The same goes for "social media" itself. Are we talking about public forums, direct messaging, group chats, content creation, media consumption, or something else? What moderation techniques and goals are involved? What subjects do the spaces in question focus on? If we can't get specific here, our only choice is to ban everything from 4chan, to Tinder, to Snapchat, to SMS, to IRC, to landlines, to physical letters, all the way down to chatting unsupervised in a public park! And what is the "risk" posed? That a child will feel disproportionately leveraged judgement from their peers, and fall into depression? That a child will view traumatic content and get PTSD? That a child will start an unhealthy or dangerous relationship with an adult? That a child will build political or religious beliefs that contradict their parents' ideology? That a child will build an addictive relationship to the media itself, and avoid healthier activity? That a child will learn how to use technical computing skills to circumvent parental, school, or government censorship? Every one of these concerns is considered valid by a significant group of adults, and considered invalid by another. We all know that leaving people alone to leverage something as powerful as computer networks is dangerous. That leverage goes both ways, and the metaphorical fulcrum is most often positioned nearest to the individual user, and farthest from the network itself. Even though this subject is vitality important, we must recognize that the only way to interact with it at all is through context. The more context we have, the more control we have over the leverage that these tools provide, and the better equipped we become to maximize safety and utility.