I had a thought that would likely make world encounters a little more interesting.
Unique children.
A few concepts that I have had:
-Raider children mixed in with large groups of raiders. (hostile)
-A group of feral cannibal children. (hostile)
-A feral child taken in by wild dogs. (hostile)
-Children's crusade, a group of kids off on some cause. (dialogue, then maybe turn hostile)
-An angry boy who throws rocks and yells at player. (hostile)
Pros:
-It would create moral conflict for positive karma players.
Cons:
-Players will have to exercise care when bursting groups of raiders.
I figured there could be a modest or low chance of encountering such things, as people will likely complain should they acquire the child killer perk through carelessness. I think it would add flavor to encounters.
It may be a terrible idea, who knows.
Regardless, Thanks for giving us a platform to suggest terrible ideas.