A single-parent family is a family where the parents are divorced or one of the parents died.
Children from single parent families tend to have more problems than children from families with two parents.
Research has shown that children from single-parent families get lower grades in school. As a result, fewer children from single parent families go to university.
They also get in trouble with the police more. When children from single-parent families grow up, they are more likely to commit a crime or go to jail.
However, not all children from single-parent families have problems. Single parents can also be very loving and caring.
Nuclear families are families where just parents and their children live together. Traditionally, most people lived in extended families but increasingly people are choosing to live in nuclear families.
Research has shown that urbanization is the main reason why people have changed from living in extended families to living in nuclear families. (Urbanization is when people leave the countryside to live in the city).
In Japan, for example, most people lived in extended families before WWII. But now most people live in nuclear families. And before WWII only 38% of people lived in cities, but now 80% of the people live in cities.
Extended families are families where three or more generations are living in the same house. Usually, that means that the grandparents are living with their children and grandchildren.
Research has shown that there are several advantages to living in extended families. Extended families are very important in countries where there is no social security net. Extended families help prevent elderly people from becoming poor.
Another advantage is that the grandparents can look after the children. During the day, the grandparents watch the children to make sure that they are ok. And they also talk to the children...