> If a child starts saying "I want to stick my genitals in feces,

This is not happening. If it did happen I would write it up to children being dumb and silly and being obsessed with poop or whatever.

>should be to call the authorities, because that child has been abused

There are basically no such authorities here. Child abuse is not just rampant but the right wing, christian government encourages it through upping the funding of schools that are most open about engaging in it.