What recent phenomenon allows middle-class homeowners to have physical security and freedom from exposure to the social problems of the inner city?

Question

Quizplus · Accepted Answer

Private communities, such as gated communities or homeowner associations, have become increasingly popular among middle-class homeowners seeking physical security and isolation from the social problems of urban areas. These communities offer amenities such as private security, common areas, and regulations designed to maintain property values and a certain standard of living.

What Recent Phenomenon Allows Middle-Class Homeowners to Have Physical Security