I don't at all recommend these for kids. Kids want to hold them and you just can't. They stress easily and die. Also most are wild caught and have high mortality rates, most not making it more than a week or two. If anything they would need to be captive bred. You'd need to find a breeder, at a show or something.

I just answered this same type question on talkto.thefrog.org You may want to check that thread as it was quite long and I'd rather not retype it!