Please cite for me, if you would, an account where an AKC registered Staffordshire Bull Terrier, NOT a UKC pit bull, nor an unregistered pit bull type dog, has ever been proven to have killed anyone, much less a child.
The dogs doing the maiming and killing are not registered animals, and they are not Staffordshire Bull Terriers.
I don't know that there is anywhere where dog bites are tracked by whether the dog is registered. It's really not the point. With the fatal and near fatal mauling statistics in mind, can any sane person, looking at all the kinds of dogs out there, say that pit bull type dogs are "Particularly good with children"? In comparison to what, a tiger?