“I know this language, that language, and my language”

Abstract Adopting a longitudinal dynamic perspective on the field of Family Language Policy (FLP), combined with insights from language socialization, the current study explores five Iranian immigrant family members’ language ideologies, practices and policies and aims to unfold the processes through which the language ideologies and policies are instantiated and negotiated. Particular foci are the evolving nature of family language ideologies and practices, emphasizing the influence of children’s language ideologies and societal interactions. Through detailed analyses of multiparty family interactions, the study argues the significance of considering children’s language ideologies as integral to understanding of their language practices, moving beyond a simplistic attribution of actions to mere ‘agency’.