Aut cum scuto aut in scuto
The Mercury 7 and the Gemini Astronauts were all uber studs. Most of them were either former fighter pilots or (in the case of Armstrong) had major test pilot creds. Chuck Yeager should have been one of them. Politics?
Cupholder design is particularly important in spaceship design. Having your coffee all over your feet on takeoff will really spoil your day!