Health care is more efficiently delivered to higher density populations. Low density populations increase the time to access health care, which increases the ri

Health care is more efficiently delivered to higher density populations. Low density populations increase the time to access health care, which increases the risk of delivering emergency care but it also encumbers access to primary care with the associated access time. Suburban areas are a great deal more expensive in terms of health care delivery. Consider that in the absence of suburbanization there is decreased demand for energy. Higher density housing is cheaper to service overall, but also provides greater efficiency in accessing services. The reduced efficiency of suburban residences _requires_ the existence of high density forms of readily accessible and consumable energy; it simply isn't viable to build an American suburb without cheap energy, because it is a hideously inefficient model. But other models _do_ exist, and _are_ successful. The suburb can die and society will be better off for it.