What is Family?

What is the family? Wikipedia says, "In human context, a family is a group of people affiliated by consanguinity, affinity, or co-residence. In most societies it is the principal institution for the socialization of children. Extended from the human "family unit" by biological-cultural affinity, marriage, economy, culture, tradition, honor, and friendship are concepts of family that are physical and metaphorical, or that grow increasingly inclusive extending to community, village, city, region, nationhood, global village and humanism. A family group consisting of a father, mother and their children are called a nuclear family." Since when did the family become so complicated? A family used to be a mother and father who were married and might have a few kids and a dog or something. The family is being attacked from all angles, which really complicates things. I am grateful for the knowledge that I have and for the testimony of the family, which the church has helped me to accomplish.