Originally Posted by JulianAR
a small group of survivor kids.
Now that's an idea. Definitely not actually playing the whole game as that, but your character could come across a group like that that had morphed into a Lord Of The Flies-type of group, sort of anarchic, pack-society that has gone wild.
But in response to the actual question, I like your suggestion about the older brother character, and someone who definitely knows a thing or two about surviving with skills like what Molly had.