5.1. While various forms of the family exist in different social, cultural, legal and political systems, the family is the basic unit of society and as such is entitled to receive comprehensive protection and support. The process of rapid demographic and socio- economic change throughout the world has influenced patterns of family formation and family life, generating considerable change in family composition and structure. Traditional notions of gender-based division of parental and domestic functions and participation in the paid labour force do not reflect current realities and aspirations, as more and more women in all parts of the world take up paid employment outside the home. At the same time, widespread migration, forced shifts of population caused by violent conflicts and wars, urbanization, poverty, natural disasters and other causes of displacement have placed greater strains on the family, since assistance from extended family support networks is often no longer available. Parents are often more dependent on assistance from third parties than they used to be in order to reconcile work and family responsibilities. This is particularly the case when policies and programmes that affect the family ignore the existing diversity of family forms, or are insufficiently sensitive to the needs and rights of women and children.