The form of elder care provided varies greatly among countries and is changing rapidly. Even within the same country, regional differences exist with respect to the care for the elderly.
Traditionally elder care has been the responsibility of family members and was provided within the extended family home. Increasingly in modern societies, elder care is now being provided by state or charitable institutions. The reasons for this change include decreasing family size, the greater life expectancy of elderly people, the geographical dispersion of families, and the tendency for women to be educated and work outside the home. Although these changes have affected European and North American countries first, it is now increasingly affecting Asian countries also