Perhaps single people are happy in their 20s, or even in their 30s, and the immature, even longer; or so they tell themselves. And the older they get, the unhappier they are. But being single allows spoiled brats to never really grow up and to also retain bad habits.
These singles aren't Monks or Nuns, living in a community!
Some of them are alone. Many of my kids’ friends are single and sad. They want someone in their lives, but are having trouble finding mates who share their values in this decadent world.