family

In human context, a family is a group of people affiliated by consanguinity.Members of the immediate family may include a spouse, parent, brother and sister, and son and daughter. Members of the extended family may include grandparent, aunt, uncle, cousin, nephew and niece, or sibling-in-law.In most societies the family is the principal institution for the socialization of children."Family" is used metaphorically to create more inclusive categories such as community, nationhood, global village and humanism.
reproduction of the family
One of the primary functions of the family is to produce and reproduce persons, biologically and/or socially.This can occur through the sharing of material substances From the perspective of children, the family is a "family of orientation": the family serves to locate children socially and plays a major role in their enculturation and socialization.
 From the point of view of the parents, the family is a "family of procreation," the goal of which is to produce and enculturate and socialize children. However, producing children is not the only function of the family; in societies with a sexual division of labor, marriage, and the resulting relationship between two people, it is necessary for the formation of an economically productive household.

my opinion
family is a important social organization. because family can reproduce and can educate their members. so family is necessary to society. family is also good to individual, because the individual can learn many things good.so the individual can more advance.

question
what is the family's cons? and is always family do good to society?