Bereavement during childhood impacts children's wellbeing and biopsychosocial development. Research examining impacts and outcomes of childhood bereavement and supportive interventions has highlighted a myriad of factors that influence children's unique, complex experiences of grief, necessitating a personalized, child-centred approach. Children's grief support is underpinned by well-established grief theories studied primarily in adult populations, and stage-based developmental theories that characterise child development as "normative" and universal. We propose a rethinking that recognises: development in childhood as transactional, dynamic, and bidirectional; children as active agents; and social contexts influencing grief and development. This conceptualisation invites expanded understandings of: children's grief in response to death and non-death losses; contextual, relational influences on children's experiences of grief; ways that grieving children's rights and agency are supported and thwarted in their daily lives; and opportunities for professionals, family and community members to support grieving children with compassionate curiosity and cultural humility to nurture grief-literate communities.
Keywords: bereavement; childhood agency; childhood grief; children’s rights; grief literacy; grief theory; transactional model of development.