It's an interesting question, and I think we can all agree that it's certainly probable that this kind of thing happens in reality: Certain "types" are sought; "role playing" is quite common. Etc. Whether this happened here, who knows, but one of the most singular aspects about this case, and there are many, IMO, is that Amy in particular, seemed to be sought out by some of the employees on the ship. It's something specifically mentioned by the Bradleys -that Amy was being paid singular attention, and that part of the crew (men) wanted to take her off the ship, to Carlos and Charlies on Aruba. They've also said that Amy wasn't having any of it and thought the crew were "creepy" or something to that effect.
There's always an underlying thought of "trafficking" in this case, because of several aspects, and the above is one of them. However, it's a puzzle: Why Amy? Was she simply targeted, for the reasons you suggest? I don't know. She just doesn't seem like your typical target for sex trafficking. She's there with an attentive family, not just her parents, but her brother, too. The original Verfied Insider on this case suggested human trafficking, but for a different reason than simply using Amy for prostitution. I do think the answers lie somewhere in that direction, but I don't have a specific theory. It's possible that Amy simply fell or jumped overboard, but there are so many strange aspects of this case that point to her being targeted and taken off the ship, IMO. I'm not sure we'll ever know, though.
