What are types of family union?

Family unions can take various forms, including nuclear families, which consist of two parents and their children, and extended families, which include additional relatives such as grandparents, aunts, and uncles. Other types include single-parent families, where one parent raises the children, and blended families, formed when one or both partners have children from previous relationships. Additionally, families can also be categorized as chosen families, where individuals create bonds that provide emotional and social support outside of biological ties.