Which process involves an individual learning the norms and customs of a group through social interaction?

The focus on the term "social interaction" in the question aligns directly with the concept of primary socialization. Primary socialization refers to the initial phase of learning where individuals, typically young children, absorb the norms, values, customs, and behaviors of their immediate family and close social networks. This phase is crucial, as it lays the foundation for a person’s identity and understanding of social dynamics.

During this process, children learn by interacting with their caregivers and family members, who provide the primary context for social learning. The norms and customs learned during this early period are significant because they shape an individual's initial understanding of their culture and social environment, influencing their future behaviors and interactions within society.

While secondary socialization does involve learning norms through social interactions, it typically occurs later in life as individuals encounter new groups and institutions outside their primary family, such as schools and peer groups. Primary socialization is distinct in that it represents the foundational stage of this learning process.