This literally just happened to my Dad. He went from working fulltime to being retired. He has completely lost his sense of purpose in life, mopes around, is becoming depressed. I feel bad but its also kinda pathetic. I mean c'mon dude you have decades of time to do whatever the fuck you want to.

To me this is a symptom of men who do not find any other purpose in their life besides working and providing. We need diversification of interests and activities for our long-term wellbeing.