Too Many Boys

Apparently too many boys are growing up in the Fundamentalist Church of Jesus Christ of the Latter Day Saints. It's a polygamous sect that occupies 2 towns on either side of the Utah-Arizona border.

Human beings are produced at a roughly 50/50 male/female ratio. That's a problem if you favor a one-to-many husband/wife ratio. It leaves a lot of young men without any chance of getting wives of their own. Before you know it, they will start making trouble of one kind or another, including the eyeing of older men's young wives.

So the cult leaders look for excuses to kick the young men out.

Keep one boy out of twenty
And there will be wives aplenty!