Well, I have an 11-year-old and kids at that age usually aren't in the business of lying that much. It happens of course.
But...if it even comes up, you have to do what's right and report it. You just have to. It's the law. You can't use your own judgement to determine if some other kid is lying or not. If she is sincere and telling you what's happening to her, you have to protect her whether she's your kid or not.
Whether you like it or not, those government agencies keep life in America somewhat civilized.
We'll just have to agree to disagree. In most cases, the govt makes things worse.
How would you feel if the example you gave was your best friend's kid? Still up to the task of "doing what's right"? You better be 100% sure or your lifelong friendship is toast, though "the law" says you MUST REPORT IT!
This in a so-called 'free' country?