i agree with trish. i wouldnt let any preteen use a webcam without me at least knowing who their talking to. i dont see the problem with one, but you should be able to come and go and know who theyre talking to. i understand you dont want to butt into their convos, but it depends on how much you and your child communicate. if you can trust them enough, i think you could probably do it. but you know how much you trust your child not me.
personally i worry about preteens on the internet, but thats probably because i know wht kinda people u can find there. iiits not always that bad, but yeh.
anyway

um. i cant really talk, cuz im not a parent, but yeh :P
sorry if i annoyed anyone.
:S