The crazy thing about this happening with toddlers (at least in my experience) is that you're not really sure how complex their desires are until they manage to communicate them.
Settlers interacting with natives knew full well how complex their desires were – they lived side-by-side, traded, socialised, and learned from each other.[1] Any suggestion of a primitive native is self-comforting propaganda from the industrial complex that comes after the settlers.
[1]: Indians, Settlers, and Slaves in a Frontier Exchange Economy; Usner; Omohundro Institute; 2014.