Is Facebook really worth my time?

I’m considering getting a Facebook, but not really sure how to bring it up with my parents. I’m 14 and they’re consistantly remminding me of “internet safety” and whatnot. Both have a Facebook account of their own, as well as the rest of my extended family. I will be a sophmore this year and, from what I’ve heard from my friends, it’s not necessarily time consuming, but slightly addicting. Do you have suggestions about whether Facebook is really worth my time?