Real people are annoying, hard to deal with, unpredictable, dirty, smelly, all sorts of issues.
The imaginary people inside your magic box are perfect, on demand, and don't complain or otherwise bother you when you put them away.
What porn is to love, social media is to, well, darn near everything else. Once we perfect donuts over TCP/IP we'll all be perfectly round and content and never need to interact with anyone else.
>Real people are annoying
They are actually not. In fact once you work on your mental health, you'll find real people the only kind you'd want to talk to. But the real people actually working on their mental health (part of it is reducing device usage to bare necessities) are quite small unfortunately. But I am hoping that will change.