I can't believe some companies charge for incoming text messages. Our companies around here, only charge for outgoing. DBF and I both have unlimited text messages, thankfully. There are many times when you do not have enough signal to make a call, but you can still send a text, or receive one.
DD9 has my old cell phone- it was a prepaid US Cellular phone that I cancelled. For some reason- she can still text message. Not sure why and i've even called US Cellular and confirmed the phone was cancelled...Anyway- she has the phone because it has quite a few games on it, and we found out she could text. I told her that she can not text anyone other than myself, her father, and DBF, and only if she needed us and couldnt reach us by phone. So far, she's been good about it. I think in the 3 weeks since we found out it could text, she's sent me 20 and dbf a couple, and those were because I didnt reply when she text'd me (my phone was off) She cant bring it to school (my rule) and generally will text me when she is at her fathers and needs my permission for something. If she wants to go to a friends house, after she asks dad, she will ask me if it's okay if he doesnt know the parents as well as I do etc.
I'm not sure when she will get a real cell phone, that actually calls, but she is going to middle school next year so I've begun thinking about it. If and when she does, she will be added to either my plan or her fathers, and will have unlimited text messages just as we do. I pay 12.95 for unlimited, which is only $2 more than the 500 plan.
I dont think you'll know how responsible your child is until you get the phone....a lot of kids who are responsible in every other way are very lax when it comes to keeping track on a phone.....its a lesson they all seem to learn the hard way.
I would go prepaid 1st- and see what they do, how they act etc... if they stay within the realms of your phones plan, add them. That way, your not adding another contract to your plan only to find out the phone isnt something your child is ready for???
Brandy