Big Brother Instinct
One very common way to establish that a male (or increasingly frequently female) character is a Nice Guy (even if the niceness is hidden under a gruff exterior) is to give them an instinctive desire to be a respectable big sibling to smaller or younger characters (in more cases female than male). These other characters may be truly younger siblings, or they may be completely unrelated, or even older, but the feeling is the same: to act as their protector.
The Big Brother Instinct serves to explain fan attraction to Moe tropes and devices as an emotional, rather than sexual, response. There seems to be something inherently comforting to an...read more