The older generation also solved a lot of problems, and gave us great gifts, as did every generation before them, and as we will for the ones that follow us.
It's not productive to try to pit the young against the old, and the GP is right to point out that you too will be old one day, if you're lucky, so it's certainly unwise to reform the system so that it discriminates against the very group you should hope to join someday (and sooner than you would imagine, sooner than anyone wishes), especially considering the alternative.