The aim of this study was to assess the effectiveness of the provision of under-five childcare services taking experiences from marginalized and vulnerable communities in Tanzania. This interpretive study employs phenomenology design to investigate the views of stakeholders based on childcare services. The focus was to determine the childcare interest, needs and requirements of caregivers living in vulnerable and marginalized communities in Tanzania and across the world. This study was grounded by parenting and child-rearing theory which emphasizes in caring for young children from the early stages. The findings indicated that the situation of children and childcare services amongst marginalized and vulnerable communities was not satisfactory. Several NGOs and Networks have been supporting childcare services with minimal support from the government. The Government and the responsible ministries and departments are responsible for reducing the vulnerability of children and their families through accessible, comprehensive, and integrated quality childcare services. This study recommends that to improve the current situation and attain the quality provision of childcare services the government policy planners in collaboration with childcare service providers and practitioners need to establish a strong commitment to the provision of quality childcare services and programs in marginalized and vulnerable communities.