DSU brings big world opportunities to youth via academic & career pathways, life skills & citizenship Duxbury Student Union (DSU) serves young people of all ages through mission-based programs designed to nurture development of social and life skills, to inspire worldly curiosity and global citizenship, and to introduce a variety of academic, college and career pathways. The Duxbury Student Union is non-profit organization serving young people in Duxbury. Independent from the Town and Schools, we provide innovative and impactful programming for all Duxbury youth through a variety of After School Programs and Special Events.