...

I fully believe that Keaton has no pack.

Except in DLC, you never meet another wolfskin, and those in the DLC are ghosts. Maybe they were hunted to near extinction, maybe he was exiled, we'll never know.

But with how excited he is to be a part of a group again, and how ... strange he and his interests are, it's clear he hasn't socialized with another peron in a long time.

it also gives him great contrast with Kaden and the Kitsune, who's the clan leader and a bit of a playboy.