Final answer:
Families have their own cultural frames that guide interactions among members, defining roles and behavior. Family structures are viewed as evolving and diverse, with members being connected by blood, marriage, or emotional bonds.
Step-by-step explanation:
Each couple and family has its own unique cultural frame that describes how its members typically interact. According to sociologists, family is more than just a concrete structure of roles; it's a social construct defined by the manner in which members relate to one another, whether by blood, marriage, cohabitation, or adoption. These relationships form an emotional connection and serve as an economic unit of society. Additionally, families can also include fictive kin, such as godparents, who are treated as closely as those related by blood or marriage.
Sociological perspectives consider the evolution of family structures and the roles within these structures as flexible and diverse, highlighting that society allows for variations that suit the needs of its members.