Imagine you are a subset of a main religion that has been around for some time.
Now imagine you forbid your (male) preachers from marrying.
Now imagine that those men have sexual urges with no outlet, with masturbation and sex with consenting adults also of course strictly forbidden.
What would you do? I think subtly or not so subtly you would encourage the clergy to use small children as an outlet for those urges. They are mostly boys as they are the least “dangerous” as there is no possibility of marriage.
If any of the children complain they won’t be listened to and they have very little power against the all powerful preacher.
The evil, evil bastards.