Families living with younger onset dementia face unique social challenges, which services do not currently address. There is a gap in understanding the experiences of families affected by younger onset dementia, including the interactions and relationships within the family units, and with existing services and supports. In this qualitative research study, semi-structured interviews were conducted across Australia with seven health and social care providers, five persons living with younger onset dementia, six spouse/carers, and 17 children. A thematic analysis was conducted using a theoretical lens drawn from the combined perspectives of the social model of disability and family systems-illness model. Two central themes emerged in the data: (1) Understanding the social demands on the family - lifecycle challenges living with younger onset dementia from a social and family context; and (2) Interactions of health and social care providers with families living with younger onset dementia - opportunities and challenges in providing support and services geared to a whole family approach. In order to provide families for those living with younger onset dementia with optimal assistance and support, co-creation of a family-focused services model is proposed. Its purpose is to support effective therapeutic interactions and service development among service users, service providers, and stakeholders.