Hello @alamk, it's very true that many young people will loose interest in Facebook. New social media platforms are coming and as such most young people will shift interest. Even steemit is another platform that when more young people discover it, they'll leave Facebook.
Please, Kindly permit me to invite you to join the #steemschools discord. Click this link to join https://discord.gg/eTZqQvk and we will teach and support you to grow up in Steemit, to choose the right topic to attract readers, to use the right tags to get more visibility, how to make quality posts and comments and gain more followers.
Thank you.