What do we call the established ceremony that marks an important transitional point in a person's life?

The term that refers to an established ceremony marking an important transitional point in a person's life is "rites of passage." Rites of passage are significant rituals that individuals experience as they move from one stage of life to another, such as birth, puberty, marriage, and death. These ceremonies are culturally important, reflecting societal values and expectations surrounding these transitions.

The relevance of rites of passage lies in their ability to signify a change in status, responsibilities, or roles within a community. They serve not only to mark these transitions but also to provide social support and recognition from the community, helping individuals navigate their new roles. Examples of rites of passage include bar and bat mitzvahs in Jewish culture, quinceañeras in Latin American cultures, and graduation ceremonies in many societies.

Understanding rites of passage is essential in sociology as they illustrate the ways cultural practices and beliefs shape human experiences and social structures.