I don't think it's as much sparks curiosity as sets off there ******** detectors, kids aren't stupid. If they are being lied to, they'll realize it and reject the information completely. Without another source, they got nothing.
True, this is why, IMHO, I don't think its a good idea to hide anything, or feel like we have to 'protect' them from something. Like I said, they're going to experiment, its a fact of life. Not educating them is IMO, causing more harm than good.