Hm... I tend to play characters ranging from 16 to 22. I'd probably want to play a female maybe... 18ish? They should probably be old enough to take care of themselves.

Have you heard of the Fire Bringer Trilogy? That's another post-apocalyptic world where all adults died and only the children remain. It only works that they're children because there aren't any monsters but it's another option.

Any ideas how you would like our characters to be related? Maybe they haven't met yet... Maybe they found each other randomly, maybe siblings...