In the movie, Valerian and the City of a Thousand Planets (2017), Valerian has the rank of major and Laureline is a sergeant. Yet, they seem so young. Is it just that the intended audience is younger, so younger actors were chosen to identify with?
1 Answer
If the ranking system is the same in the future, major and sergeant aren't that high up. And age isn't really a factor so much as your ability to handle the privileges and responsibilities of the rank.
Clearly Valarian and Lauralene earned their ranks.