Re: Crew familiarity
Starfleet is a fictional organization from the fictional future. It's not the US Navy (or even a fictional version of the US Navy), so it's not "wrong" if they do things differently. That's like an American watching a show about the navy of another country and complaining that the differences are inaccuracies. They're not inaccuracies, they're differences.
For example, some countries pronounce Lieutenant "loo-tenant" and some pronounce it "leff-tenant." One isn't "right" and the other isn't "wrong", they're just different.
"Leff-tenant" is wrong because there's no "E-F" in "lieu
So where's "R" in Colonel?
"God runs electromagnetics by wave theory on Monday, Wednesday, and Friday,
and the Devil runs them by quantum theory on Tuesday, Thursday, and
-Sir William Bragg