@Justicar Eh, not necessarily. People could do better overall taking care of themselves. I'd rather argue it was the falling out of physical exercise from public mandate. Suburbanization has a fair criticism of perhaps working in more community centers & such. At the end of the day though people are just lazy and pulling a lot of socialization out of events that keep us from moving & being fit has done things. Namely I'd say having a lack of male spaces.
@Justicar I'd also add putting them all in school together which eliminates at face value the need to go find girls/women outside of the male environments as well. It makes people stagnant in their environment by proxy.