I for one don't fight them, regardless how horrible they would be spoken out aloud, because so far I haven't seen any evidence of anyone reading my mind.

I also made a point of explaining to my child that her thoughts are hers and hers alone, so she can think whatever she likes.

I would rather not have to backtrack on any of this.

Yet, they still do use lie detectors, even though the things they detect can be faked, or triggered out of personal alarm or offense. So it is entirely possible, regardless.