And that is THE issue in a nutshell. Just how selfish are we is the question.
How does our doddering in our eighties interfere with our progeny's progeny? I mean, do they need our money for college or something?
As long as we can care for ourselves, there is enough space for all of us. And my grandchildren adore me. And I will give them my money so they won't be sitting around wishing me gone.