Those that have completed higher education have happier, more stable lives.
The benefits of university are not just economic. Those with a university degree are more likely to perform well in other metrics that indicate a happy, stable life. Those with university degrees are more likely to have a successful first marriage. They are also less likely to be living on the streets. They are also healthier than non-college educated workers. College graduates are less likely to smoke, more likely to do regular exercise, and less likely to be obese.
[P1] Graduates have happier, more stable lives than non-graduates. [P2] Therefore, university degrees increase lifetime happiness. [P3] Therefore, university degree are worth it.