The age grade institution, locally known among the people of South Ibie as "Otu," is a dynamic system deeply embedded in the cultural fabric, facilitating communal cohesion, governance, and development over centuries. This study is a field based sociological investigation of the multifaceted roles of age grade institution among the people of South Ibie, Etsako West Local Government, Edo State. Drawing on fieldwork conducted between 2023 and 2025, the research examines how the age grades have functioned as mechanisms for cultural preservation, social cohesion, conflict resolution and community development. Sociological theoretical insights of structural-functionalism and conflict theory were applied for the study. Qualitative ethnographic instrument using participant observation, in-depth unstructured interviews, and analysis of historical and archival records were used to gather data. Findings indicate that age grades in South Ibie have achieved institutional adaptability in the face of modernization and has contributed to South Ibie societal cohesion and community development, though challenges like urbanization and youth migration were observed to be threatening its sustainability. Recommendations include policy support for integrating age grades into contemporary governance structures for policy makers seeking to leverage indigenous systems for sustainable rural development in Nigeria. Keywords: Ethnographic Study, Roles of Age Grade, South Ibie, Etsako West Edo State, Nigeria.
A Tue, study studied this question.