Growing up in more than one world: relational plurality and the child’s internal landscapes

Clinical and developmental theories of childhood have traditionally been organised around the assumption of a relatively coherent relational environment, even where that environment is strained or complex. However, many children grow up across more than one organising relational world, moving between households, cultures, classed environments, care systems, or neurodivergent and neurotypical contexts. This paper proposes that such developmental plurality gives rise not to a single internal organisation, but to the internalisation of multiple emotional grammars, which come to function as differentiated internal worlds. Drawing on psychoanalytic theory, attachment research, trauma literature, and sociocultural frameworks, the paper offers a developmental framing of internal multiplicity as a developmentally coherent response to external relational plurality, rather than as evidence of fragmentation or pathology. It brings together six common developmental pathways through which children may be required to inhabit more than one relational world, including two-household childhoods, migration and diaspora, class mobility, neurodivergent development within neurotypical worlds, and discontinuous caregiving contexts such as adoption and foster care; trauma-structured environments are considered where children must orient across patterned conditions of safety and threats. Across these pathways, a shared developmental structure is identified: children adapt to differing relational worlds by internalising parallel reference systems that organise affect, anticipation, and relational stance in context-sensitive ways. Apparent inconsistencies in behaviour or self-presentation can therefore reflect coherent adaptation to differing emotional grammars rather than instability of self. Clinical implications are discussed, highlighting the importance of listening for relational worlds rather than privileging a singular notion of the child’s self. The paper concludes by considering how developmental plurality may support resilience in some contexts, while placing strain on continuity of self where relational worlds remain incompatible.