Final answer:
The first social institution infants are usually introduced to outside the home is the family, which serves as the primary socialization agent. Here, children learn about norms, values, and behaviors, and begin their understanding of the world and society.
Step-by-step explanation:
In most cultures, the first social institution infants are exposed to outside the home is often considered to be the family. As the primary agent of socialization, the family plays a crucial role in the early stages of a child's social development. Parents, siblings, and extended family members teach children about social norms, values, beliefs, and appropriate behaviors. This includes learning to use various objects, understanding relationships with different people, and grasping the basic concepts of how the world functions. Socialization within the family unit includes the transmission of culture, manners, and civility, setting up the foundation for future interactions in society.
The first 'school' experience such as day care, preschool, or kindergarten typically serves as the second socialization agent, where children continue to be introduced to the beliefs and values of society in a more formal setting.