Family

What is a definition of family?
There are a great variety of lifestyles. For example, traditional nuclear and extended families, unmarried couples, single-parent families, "blended" families, and so on.
In prewar days, there were a lot of extended families. But,Now, nuclear families are most general. It is said that this situation influence a declining number of children. In extended families, there are many people, a grandmother, father, a cosin, sister, brother, and so on. They help each other. So, husband and wife can have many children.
The existence of familis is very thankful. They always help me. In the future, even if I get married, I want to live near my parents and help each other.