I know this is a popular theory. It's nature vs nurture. Some say it's 100% nurture. All kids have a natural tendency to turn out well, unless they are traumatized or raised badly in some way as a child.I doubt that some kids are "bound and determined to go wrong". I would bet that these kids were traumatized at some point and no one took it seriously or were capable of intervening.
So, can they swim? I was expecting video of them swimming. Perhaps they didn't want that to be seen!
She looks Irish.