As I said, I have no problem with nudity in photos. I just don't think minors CAN give informed consent, because they don't have enough experience in life; they don't understand the ramifications. This is not a problem only for the child or the parents -- it's an ethical problem for the photographer.
As a photographer, I wouldn't take pictures of a nude minor because it's not ethical for me to do that: I don't care how eager they are to do it, or how natural nudity may be. It's also not ethical for the parent to allow it, and the child CAN'T make an informed decision, because there are too many other pressures on them, and they are not old enough to deal properly with them.
I'll give you an analogy: the (female) teacher who was arrested, several times I think, for having sex with a fourteen-year-old boy. The boy was eager enough, sex is natural enough, but it is not ethical for someone in a position of power to have sex with a minor over whom she had some power.
Sturges offers fame, or notoriety, or money, or whatever, to children and their parents. The children are too young to make the decision for themselves, so the decision has to be made by others -- and IMHO, it is not ethical for those people to make that decision.
There is nothing necessary about allowing a minor to have photos taken nude -- not necessary for their health, for their education, for their development as human beings, etc. Public nudity is not a natural condition in western culture -- perhaps some think it should be, or it has been, but right now, it's not. To allow children to become involved in something that they MIGHT regret for the rest of their lives simply is not ethical, when that action can be easily avoided. Of course, it is possible that they might not regret it; but that's unknowable.
The beauty or quality of the photos is absolutely beside the point.
JC