American citizens who listened to the wisdom of ZPG (Zero Population Growth) back in the 1970s may be wondering if their decision to have a small family, 0-2 children, actually contributed to the lowering of US population.| Negative Population Growth
Some 57% of adults under 50 who say they are unlikely to have kids say a major reason is they just don’t want to. Among those ages 50 and older, 31% cite this as a reason.| Pew Research Center