Final answer:
According to McArdle, the next 20 years will require a transfer of resources away from the care of children to the care of older people.
Step-by-step explanation:
The statement that according to McArdle, the next 20 years will require a transfer of resources away from the care of children to the care of older people is true.
As healthcare improves and life expectancy increases, elder care becomes a growing concern. The aging population, particularly the baby boomers, will require more care and support. With fewer working-age individuals available for elder care, the costs of elder care are expected to increase.
This transfer of resources is reflected in the changing age structures of countries. Economically undeveloped countries tend to have greater proportions of children and fewer proportions of elderly people, while economically developed countries have fewer middle-aged individuals and more young individuals.