I've learnt a lot from your post personally and I must say that was too long a time to create a Facebook account in your final year. Sorry to ask, how do you connect with your coursemates in high school? Or did you have any other social media you were using? Anyways, you made a detailed post on this subject matter. When it comes to age requirement for using social media, you made a great point there.

Social media should be used by individuals who can understand the negative and positive effects of them and also the people who have the ability to understand the nature of social media.

In a clear sense, this calls for maturity and intentions for doing so. But even with that, the world have been revolutionized by social media, making even young ones join social media to carry out school activities and also receive vital information on board. Wishing you best of luck in this contest. Here's my entry link
https://steemit.com/hive-169461/@bossj23/steemit-engagement-challenge-season-8-week-1-or-or-the-power-of-social-media