Kids having some kind of sex with kids is a reflection of their upbringing, common in jw land because their innocence is destroyed from birth having to listen to sex talks at the Hall.
I don't believe an under age child perpetrator would be prosecuted by law, the trauma of losing his own family paired with weekly brain washing sessions and cult behaviour is the true perpetrator. Adults are responsible here, not children.
JW families in general do not have open communication with their children because of the judgement and stigma of 'sin' and 'sinful behaviour ' which cause children to be silent, for fear of punishment, which we all know is harsh.
I am speaking from personal experience and eye witness experience.
Children cannot be blamed for childhood behaviour directly caused by the way adults raise them. The law wont see it as any different.