My nine-year-old spends every waking moment doing two things (when I let him):

1. playing Minecraft on the server by himself, with friends, or playing games.
2. watching YouTube videos about Minecraft.

I strongly encourage Minecraft as a hobby for all of the obvious reasons (Like this, this and this.) Someone sent me this resource from Common Sense Media (also a great overall media resource) on child appropriate YouTube videos for those little ones who spend every waking moment watching YouTube videos on Minecraft. I hope you find this resource useful-I plan on going home tonight and building a YouTube channel so my nine-year-old can watch only age-appropriate content. Let me know your thoughts, and any kid-friendly Minecraft channels your family likes.

Image by Deejay from SoCal, U.S.A. (SAN DIEGO COMIC-CON 2014) [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)%5D, via Wikimedia Commons