Comment Re:But what do they do? (Score 1) 84
Actually, if they come right out of ROTC, there is a good chance they are 2nd LT. (or 3rd LT "butter bars") around 19-21 years of age. And just because you are not an officer at 18, does not mean your years of service do not count toward retirement 20 years into your service.
Commissioning in the US armed forces today (historical exceptions notwithstanding) requires a bachelors degree. Few have that at 19 years old.