LOL! Amongst Sci-Fi fans, that sort of character now has a slang name...any child or young person in a movie who has some sort of "special" relationship with the monster, or seems to have acess to all high-level military planning meetings and is taken seriously by those present is called a "Kenny", after the first one who appeared in a "Gamera" movie back in the day.
HAAA! I REMEMBER THAT! (because it happens to be my name)