Of course they all not do the same, but most of them seems so, at least in the comics in movies, so i expect that a predator sended by the predator race in a mision, becuse in the movie they put jungle junter and city in the same package dna shit, are going to have the same code, in fact thats one of the things that make the creature great.
But lets say it doesnt have any code, what kind of trophy is a kid, why he didnt kill him?
Plot convenience, and the stupid surprise of noo, its the kid not the father, and yeah kids with mental disorders can be value.
This is not the movie to do so, and more if he lost his discapacity after 5 minutes of the movie.
I respect you like it, but you are defending things that has no sense. I even enjoy some parts of avpr, but the movie is a pile of shit.