I was discussing this thread with my wife yesterday. I agree with the premise, and hope to actively pursue it (and having no children makes it easier). My wife is coming around to the view that we don't have to limit our spending more than is necessary, and having a mortgage is not the end of the world (and doesn't have to be paid off early - tracker mortgage that it is).
She made an interesting comment about her father. He is widowed, retired, and has enough financially to see him out (he's in his eighties). He confided in her that he is worried that there is now no money coming in, and there is a net outflow from his savings/capital.
I feel that's the normal mind-set, especially for someone who has worked and paid the bills/family/house etc. They would find it hard to change now to think - OK, I have more than enough to have a comfortable lifestyle for the rest of my life (unless I live to be 120). I can run down my savings and enjoy myself.
I also feel it is a bit of a shame. He has worked all his life, successfully funded his children, education, and supported his family. And that mindset is still there, and possibly limiting his enjoyment of his later years.
We talked about wills as well, and my (flippant) remark was, "If I die first, you get everything, if you die first, I get everything, and if we both die together....WHO CARES).