Social media became 'essential' because the barrier to communication dropped drastically, effectively widening your net for useless connections and sucking you into a vortex of crap.
After deleting FB, I could only remember a handful of people that mattered, another few reaching out of their own accord who I'd forgotten about.
Can't for the life of me remember beyond 30~ people from my list out of 900~. I realized I truly did not give a fuck about Kristoffer from Norway that I met zip lining in Mexico in the summer of 08.