As a relatively free economy in the United States and other countries has increasingly given way to the advancing statism of a mixed economy, the trend toward more progressive attitudes toward children and family size has shown signs of reversing. In particular, as the structure of both the income tax and subsidy programs begins to favor large family size, children may again come to be viewed as a source of economic support for members of the older generation. Moreover, much of this subsidized population growth is concentrated in the most impoverished families (cf. p. 4.11:160). Consequently, large numbers of newborns, having received little or no prenatal care, exhibit low birth weights, drug addiction, or other medical problems, and thereafter suffer all the negative consequences of growing up in an economically and culturally deprived environment.