You are in luck: followup research shows that kids with impulse control (er, patience) came from stable families with safe predictable behavior, and less patien

You are in luck: followup research shows that kids with impulse control (er, patience) came from stable families with safe predictable behavior, and less patient kids came from families with unstable environments and adults who weren't reliable. In fact, the kids were roughly equally rational with respect to the environments they grew up in.