> This is interacting with "the world".

To each their own, but no, it's not the world. We're made for real, in person interaction. Huge chunks of our brains are made to discern subtle facial details or body movements.

I remember there are studies that socialization is good even for introverts. They think it isn't, but it is.

We're social creatures by design, it's built very deep into us. To try otherwise is foolish for 99.9999% of people. Of course, everyone thinks they're that 1 person in a million:-)