I have wondered as college becomes more and more universal if it is delaying the onset of adulthood into later age. Before college was more widespread, after high school (and many times before it was completed) was the time to get a job, get married, have kids, and wait to die. Not that time is later and later and I wonder if it's partially due to the effect of continued education without real responsibility. Being an adult means being able to ignore things that bother you when it's not that big of a deal in the grand scheme of things. And more over, being an adult is knowing what is and isn't a big deal. If you didn't care about it before Facebook told you it was a big deal, then it might be time to examine for yourself whether or not it is a big deal. As college delays adulthood, you would expect to see similar delays in this development of self and context.