I would find that he had made her wear a small pentacle necklace to school. My fear was that athough she was being educated in both Christian and pagan traditions (harmoniously for the most part as much of paganism fleshed out my personal Christian beliefs)at 3 or 4 she was not able to articulate why she wore a sometimes socially misinterpreted symbol of faith. We all know there are dumbos out there who still mistake the pentacle for a symbol of Satanism and it didn't seem fair or safe to have her perhaps so labeled. We decided on a truce - no religious symbols period.
You see, now this is why I really appreciate the aspect of Paganism that considers itself a totally private and personal practice. I can understand why some people feel the need to claim their paganism loudly (especially when coming out from another religion that does so), but I feel that the more discreet someone is about their practice the more sacred it is.
I totally agree that a child of that age is not in a position to discuss why their family "believes" a certain thing, and that goes for any religion. I feel only the principles/morals of a community should be taught to very young children, the actual religious aspects should only be shared when the children are old enough to understand and make their own decisions. Belief in a religion should never be forced on anyone - many of us know what happens when it is.