That's because as you get older you realize that pretty much nothing you say/do makes a difference and it's pretty much all pre determined.
It makes more sense to care about YOU and family and to get the most out of what you can instead of trying to fix the broken system that is broken because they (whoever that is) wants it that way.
I think I care about things just as much but what I care about has changed. It's the bigger picture and the sh*t that use to get me upset, worked up or excited I just let it slide now.
I dont think he was saying he is stuck in a rut or he doesnt care about anything anymore. It sounded more like priority's have shifted.
I agree though with who said change things up and travel. I was stuck in the rut of going to Mexico, Hawaii, Bahamas, the NORMAL vacation spots but then I did Asia and it was a whole new world. Real eye opener and a lot of fun. It made me re evaluate what I though was important in life and make some changes.