Their childhood and them just being kids
When using logic or common sense to solve problems that will be protected
I would say that it is false that the sentence uses the proper pronoun. We don't know whether the crew member is a man or a woman, which is why you cannot use <em>him </em>here. You should say - them. If we knew it was a man, then <em>him </em>would be fine.
Since they are white, they may represent purity or innocence!
