As he starts to learn who he is, how he fits into all of this and who his dad is, it's an interesting sort of way that-he sees life differently than we see Kratos. They've lived in this forest, a very small area. “Atreus only knows the world that he lives in with his dad. Cory Barlog, Creative Director ( Mashable )
They're both sort of teaching each other a little bit and kind of helping each other hobble through a very difficult emotional journey.' The kid has no idea about any of that stuff.
He's helping Kratos understand what it was like to be a human and Kratos is trying to help the kid understand what it means to be a god. 'From a story perspective, Atreus is the humanity that Kratos lost.