After selling the sweetest and most innocent little girl from Little Lamp Light into slavery, I didn't see the point in making all the children bullet proof.
I also sold Red (a 16 year old girl) and found out that she was going to be a sex slave. Nice, so sexual slavery isn't taboo but child killing is.
I also killed Nova the prostitute in her sleep, and cannibalized her corps. Nice, prostitution and cannibalism are ok, but killing the kids in the Republic of Dave is a no no.
I also bombed Megaton Hiroshima style, killing at least two children in the process. Nice, killing an entire town with an image right out of the Hiroshima Atrocity is fine but killing a child with a shotgun is taboo.
I don't mind if child killing isn't in a game with guns and lots of innocent killable bystanders, but PLEASE don't put children in the game or PLEASE take away our guns for the parts that they're in it.