Firefly phones are great for kids, and especially for parents who want more control over what -- and who -- their children are calling. I got one of these phones for my daughter, and even though she wanted one that had all the bells and whistles on it, this was perfect. We programmed our numbers, grandparents' numbers and two neighbors' numbers in it, along with the two friends she sees the most. So she's not calling anyone we don't know about.
It sounds kind of like a dictatorship, but my view is, if I'm buying the phone and paying for it, then my rules apply. When she gets old enough to get a job and buy her own phone and pay for the use, then she can call and text all she wants to.