Causal or correlative?

analysis found that young adults who finished high school, worked full time and got married after age 21 and before having kids "had a 2 percent chance of winding up in poverty and a 74 percent chance of winding up in the middle class (defined as earning roughly $50,000 or more). By contrast, young adults who violated all three norms had a 76 percent chance of winding up in poverty and a 7 percent chance of winding up in the middle class.