That is what most people don't get. You work for your retirement, not only your salary. Delayed gratification is hard, but it pays off.
I would not count on only one pension because anything can happen to the fund over a long period of time. I am working on a strategy for myself and additional income that can help me in the future and I do not have to have only one source. The earlier many people understand this, the more likely they are to have at least some savings in old age.