"The average age the night we had splashdown (Apollo 11) was 28. When Space Shuttle Atlantis left Earth on May 11, 2009, the average NASA civil servant's age was 47." [1]

There were risk takers, now they are protecting their ability to pay for 2 kids to go to Ivy League. Who can blame them?

[1] https://www.popularmechanics.com/space/a4288/4318625/