From memory in the past on this forum:
http://www.alldeaf.com/hearing-aids-...e-ci-sigh.html
I think just like with hearing aids there are going to be people who don't want to wear a CI when they get to a certain stage. Many others however find their CI useful and will continue wearing it. It's hard to know how it will turn out for your daughter but I understand your need to at least educate yourself.
I think your daughter is about 5, right? I think the best thing to do since she is older is to involve her with the decision to hand and if she decides later on that it's not for her then to support her again in that regard to switching it off or whatever.
There was a British study last year that looked at the opinions of about 29 teenagers who had been implanted as children. Here is the thread where we discussed it.
http://www.alldeaf.com/hearing-aids-...nagers-ci.html