This is a tangent, but I've heard that children who grew up in the "space age" after Apollo thought we would be on Mars right now, or colonizing the solar system. It was their childhood dream.
Hence a lot of men (especially rich men) in that era are interested in flying planes and going to space. Bezos was born in 1964 and Musk was born in 1971.
On the other hand my first memory of the space program was literally the Challenger disaster ... that's when the myths started dying down, and when America stopped going to space very much. I never really had that dream, and it feels like many/most people my age and younger don't.