I don't mean you, Doctor, but as a general comment... if all the people that said they're not on Facebook were actually not on Facebook, Mark Zuckerberg would be shilling that spray that makes your screen door into a boat. Again, not anyone here, I get it, there ARE some that aren't on. But in my experience, the lure is just too great. There's too much immediate, deep satisfaction from throwing your selfie where you kinda think you look a little fat, but some dork from Illinois replies with "Honey, u look FINE!" There's too much intellectual reinforcement to the quippy tweet about tRump that gets a "Yeah! Throw 'em ALL in jail!"* that is too self-affirming. We're largely addicted to it now and I can't imagine really, actually, ripping that bandaid off. It'll be the worst hangover anyone has ever seen.
* Not even three years removed from similar tweets castigating "The Orange One" from making the same claims against Hillary; again, it's not the actual position it's the way you're pointing in today's partisan, divisive political arena.