There are different arguments about how and why we as humans feel a need to connect with others of our kind.
I've been reading and rereading an outline by Stowe Boyd about Social Cognition. He starts off the presentation talking about how language is universal, in a social environment. Lose a kid in the woods to be raised by wolves and he will have no language. Drop two kids on a desert island and they will create their own language.
Stowe then moves to how relationships/ conversations/ and connections unite us and have been proven to help advance adoption of new ideas, scholarly performance, happiness in the workplace, and so on.
Cognition is social, at the core, and much of what people do, or decide to do, is channeled and amplified through connection with others.
Social Cognition, as a discipline, studies how our brains work on relationships. It's a key element of understanding the struggles of the autistic, who make fewer social connections in their brains than the average Joe.
So we are wired to think socially. To draw from relationships to solve the problems that we encounter day to day.
We are also wired to socially build and evolve language.
Social transcends the development of both.
And I would argue that story transcends it all. We are compelled to share our experiences, to work through problems, morals, wonders, and discoveries together, via language and the way we encapsulate this and work things through together is story.
It's universal, fundamental, and shapes our lives at the core.