My guess,, the villagers don't have any children, they clone themselves.... that's y u c familiar person no matter where you go.
How they clone....?
Well don't ask me.
apart from the joke...i think that The lord saddler and his followers recruit peoples from other parts of the country and inject them with plagas so saddler can control them. The control is the whole idea behind the Plagas itself, so the saddler can control the peoples according to his will. Thats how they keep their sort of religious cult going. So there are no children in the village.
It may not make sense to some of u, but its one possibility.