And if we paid everyone in society to dig ditches, does that mean we're all rich? You have to be doing something productive. By paying people to care for the elderly, you are diverting your resources toward that cause, thereby diverting away your labor in other industries which add productivity in other respects. It's a net negative, no matter how you look at it.

Even if "rich people" pay most of the taxes, you're still diverting resources away from other areas that could better serve the people.

You say, it's a moral prerogative, well what about the moral aspects of doing what is right for the young people. Isn't the whole purpose of old people having children is to pass the torch from the old to the young. Isn't it immoral for old people to demand so many resources on society they rob the quality of life from their children? A moral old person shouldn't want to drag down the young people and should want to simply kill himself to give his children a better life. You ask what is the purpose of working 40 years. For the next generation, is it not? This idea that you work to enjoy a retirement is new age boomer bullshit and part of why our society is so trash because boomers stopped caring about the next generation so long as they got their vacations. That's not a great way to build a society either. A good moral old person should want to die 5 years earlier instead of take up a bunch of worthless resources just to prolong his life well past his prime.