If by "us" you are speaking of your friends, I can't argue that, I don't know them. If "none of us" is your generation, I couldn't disagree more. For example, marketing research shows that millennials spend more on food, alcohol, apparel and transportation categories than any other generation.
My wife had a "bake sale" at my work, and I sold ahem, "vintage" denim to pay some racing in my early 20's. I also raced back then out of a pick up truck with a conduit and harbor freight canopy. So I hear you when it comes to what you and I were willing to do. I also understand there won't be a lot of takers, but it's because of the sacrifices required that most aren't willing to make.
If no one shows up at the track, no need for lights. Million memberships with no product you need to deliver? The club would be in much better financial shape. Kind of like the 90+% of gym memberships that get used less than once a month. You think those gym owners want more people using/abusing their equipment and facilities? Heck no, they want just enough activity to entice new members to join.