*girl looks familiar* *looks in other pictures in comparison* *goes back and forth before coming to a possible but likely confusion... and decides to forget about violating spoiler rules because of a massive dose of not-caring-what-others-think*
... That girl looks a lot like Harley, doesn't she...
Not my point. Friday the 13th, Nightmare on Elm Street, Halloween, et al, had a disturbing 'moralistic' trend that seemed to be saying that it was 'just' to murder a teenager because they were sexually active. Although they also killed other people too, but teenagers involved in sex seemed to have special attention.
The Predator didn't care about that. The Predator attacked people who were armed, or who attacked him. He was still a killer, and usually outclassed his opponents, but at least he went after other 'warriors'.