Exactly. LLM's are mimics.

People seem to be going around pointing out that people talk like parrots, when in reality it's parrots talk like people.

I mean, it's both.

Did you develop your own whole language at any point to describe the entire world? No, you, me, and society mimic what is around us.

Humans have the advantage, at least at this point, of being a continuous learning device so we adapt and change with the language use around us.