High Quality Content by WIKIPEDIA articles! The American family structure is considered a traditional family support system involving two married individuals providing care and stability for their biological offspring. However, this two-parent, nuclear family has become less prevalent, and alternative family forms have become more common. The family is created at birth and establishes ties across generations. Those generations, the extended family of aunts, uncles, grandparents, and cousins, can hold significant emotional and economic roles for the nuclear family.