Families are usually parts of larger networks of people defined as what?

Both 1 and 2

Families in various societies exhibit considerable diversity, characterized by differences in the number of members, the nature of their relationships, and the shared activities they engage in. It is common for individuals within the same family to share resources like food and cohabit, collaborate on work, and participate in rituals together. Families are not isolated units but rather interconnected within broader networks of individuals known as relatives or, in more technical terms, kinfolk. Despite being often perceived as "natural" and based on blood ties, familial connections are actually defined in diverse ways across cultures. For example, while some societies consider cousins as blood relatives, others may not adhere to the same definition. Such variations in family structures and kinship definitions underscore the cultural nuances and complexities inherent in human societies.