It only seems reasonable that we should indeed do some preparation for a period of perhaps 30 or 40 years of living. We need to develop some expectations. I’m not sure they need to be "Great Expectations", but at least some might be wise.
We like to trust people. That is a good thing. However, sometimes we can be taken advantage of if we are not careful. As we grow older this can become a very serious problem.
I know some people who say they don’t know what they would do if they were retired. My experience tells me that you will, or can be, very busy. Busy, but busy doing exactly what you want to.