These are long-range goals, obviously. I’m never going to the Moon or Mars. I may not even be alive when someone else does. A lot of our training is like this: we learn how to do things that contribute in a very small way to a much larger mission but do absolutely nothing for our own career prospects. We spend our days studying and simulating experiences we may never actually have. It’s all pretend, really, but we are learning. And that, I think, is the point: learning.
Hadfield, Chris (2013-10-29). An Astronaut’s Guide to Life on Earth: What Going to Space Taught Me About Ingenuity, Determination, and Being Prepared for Anything (p. 49). Little, Brown and Company. Kindle Edition.”