While I generally agree that, yes, you're in essence paying back your own education. But also you're ensuring that your world has a functioning economy so all

While I generally agree that, yes, you're in essence paying back your own education. But also you're ensuring that your world has a functioning economy so all that money you've saved to look after yourself in your old age is worth something and there are actually things to buy with it. If your country goes to pot around you because you didn't raise a couple of functional generations to replace you (even if you didn't have kids) you're effectively screwed, an old person in a Mad Max world