If you start depending on an aging workforce, you're going to run into health problems, and then you're no further ahead. It's got to be the younger workforce, but the training isn't there, and it should be, because that's who you're going to look to for employment.
I've been working since I was 16, and it will be 50 years or more that I've worked. I worked hard as a child and I don't want to work beyond 65. At the same time, I live far below the poverty level, so the necessity is there for me. I have a myriad of health problems, so I just don't see how I could do it or want to do it.