in the trend, Pew Research Center exec VP and co-author of its multigenerational household study Paul Taylor said it has been growing over several decades, fueled by demographic and cultural shifts such as the rising number of immigrants and the rising average age of young-adult marriages. The importance of an extended family is one that many people may not realize, but having a support system and many forms of income may help people today because of the difficulties in finding a job and bringing in enough money. See also Cluster genealogy References Family Living arrangements