From where else could the self have arisen?

Question

assuming that George Herbert Mead is wrong in saying that the self arises in social experience

Answer 1

I think a single human child in the wilderness has a concept of self despite no societal interaction. It just takes thought.

C. :)!!

Answer 2

Partially, from our evolved human nature interacting with the social milieu and partially, from cognitive interactions of our large brain; emergent self-consciousness. You do not have to assume anything; George Herbert Mead was refuted long ago.