There's a lot that can be learnt from 'just bones'- diet, disease, population movements, etc.
Archaeologists who deal with human remains do so with the utmost care and respect. The remains of this child won't be cut up or treated as some sort of freak show exhibit.
It is important, too, to remember that you don't know how the parents of this child felt about human remains. Some cultures have great reverence for human remains, others view them as empty vessels that no longer hold any significance. As a PP mentioned, we know of many cemeteries where it was common for bodies to be exhumed and relocated after a few months. People are not always buried with the expectation that they will stay there forever.
I had an archaeology lecturer who used to tell a story about a dig he conducted in the pacific. He was interested in a particular type of pottery. He received proper permission from the authorities and the local elders/chiefs to dig in a particular cave. He put a trench in, and came across a burial. So he stopped digging, went back to the village, and asked the locals if they knew anything. The response? 'Oh yes, that's probably just my grandmother. Just move her out of your way.'
I've always suspected that tale was slightly exaggerated, but the point still stands- other people have very different views about the dead. You're entitled to yours, but please don't assume people who died centuries or millenia ago would have shared your reverence.