Did they believe in an afterlife — a realm to which the child was traveling and for which the grave goods would be useful?

Did they believe that the dead persisted in some form that required the physical accompaniment of objects?

Did they have specific beliefs about what children needed in death that differed from what adults needed?

We don’t know.

The archaeological record of burial practice can tell us what people did — the specific acts that left physical traces in the sediment.

It cannot tell us what those acts meant to the people who performed them.

Meaning leaves no bones.