Theoretically and methodologically framed within family language policy studies, this article contrasts the idea of Mapuche-Pewenche child autonomy and agency, as the result of the early socialization of Mapuche-Pewenche children, with our sociolinguistic ethnographic data from two Pewenche families. We do this in order to determine the extent to which, from a parental perspective, the agency ascribed to Mapuche-Pewenche children impacts the language policies in each family and the transmission of their indigenous language, Chedungun. We conclude by suggesting that, even though agency and autonomy are present in the way the children in these families are socialized, when it comes to determining the sociolinguistic future of these children, parents appear to assume the main role as agents of language policy.