What about your next job? As long as education is done at the start of one's life, we can't look at its manifested usefulness for "young" people. You can maybe

What about your next job? As long as education is done at the start of one's life, we can't look at its manifested usefulness for "young" people. You can maybe make preliminary tallies at 45-50, at which point I would expect the course of their life is better defined and the contribution of various periods can start being evaluated.