Much of contemporary urban theory rests on the idea of weakening family connections: fewer marriages and lower birthrates will decrease the appetite for lower-density housing. Families do not make up the prime market for dense housing; married couples with children constitute barely 10% of apartment residents, less than half the percentage for the population overall.
Families also generally settle in less dense parts of cities, suburban or exurban areas; the places with the lowest percentage of households with children include favored abodes of the density lobby such as New York (particularly Manhattan), as well as Chicago, San Francisco and Seattle. In contrast the metropolitan areas with the strongest growth in their child populations — Raleigh, Austin, Charlotte, Dallas, Houston, Oklahoma City — have much lower densities and far smaller urban cores.
This flight from density among families is not merely an American phenomena. There are far higher percentages of families with children in the suburbs of Tokyo, London and Toronto than within the inner rings. The ultra dense cities of East Asia — Hong Kong, Singapore and Seoul — have among the lowest fertility rates on the planet. Tokyo and Seoul now have fertility rates around 1 while Shanghai’s has fallen to 0.7, among the lowest of any city ever recorded, well below China’s “one child” mandate and barely one-third the number required simply to replace the current population.
Some have suggested that the Obama administration is conspiring to turn American cities into high-rise forests. But the coalition favoring forced densification — greens, planners, architects, developers, land speculators — predates Obama.