Kids are increasingly becoming rare sight in burgeoning cities.
Ultimately, everything boils down to what purpose a city should serve. History has shown that rapid declines in childbearing—whether in ancient Rome, seventeenth-century Venice, or modern-day Tokyo—correlate with an erosion of cultural and economic vitality. The post-family city appeals only to a certain segment of the population, one that, however affluent, cannot ensure a prosperous future on its own. If cities want to nurture the next generation of urbanites and keep more of their younger adults, they will have to find a way to welcome back families, which have sustained cities for millennia and given the urban experience much of its humanity.