The predators groom their subjects....they take an interest in the child, get on close terms with the family...develop a bond, a trust...then they get to the child who trusts the person and looks up to him. Yes the arrangements in kh's make this pretty simple a process. I know...it happened to me. One of the lord's anointed, a special Pioneer ...was literally part of our family for years....I bolted when he made his advance...and he was blubbering don't tell mother...I didn't for many years....but avoided the pig like the plague.
In another case a young son of an elder loved to babysit the young boys in the cong...and the moms thought how wonderful for my kid...this wholesome Pioneer role model ....then why he wanted to watch only the little boys came to light. It was quite the scandal....and the main victim was spreading in his childish ignorance the activities to other cong kids....
Too much trust...too many opportunities. Yes kh's are fertile ground for perverts.