M.
I think, personally, kids should not have parent's religion forced upon them...at least not to the extent that they are missing a basic tradition like Halloween. They should be allowed to explore all avenues and learn many things and make informed decisions later on.
Secondly, Halloween is not anti-Christian...if you would learn more about it, it has it's roots in the Catholic-dominant tradition (and mostly Mexican tradition) of Dia de los Muertos...or day of the dead. Here, dead are honored and remembered in a light hearted way. Just food for thought...I think forcing a kid to miss Halloween when all of his friends will be enjoying it (Christian and non-Christian alike) is just not healthy. In fact, it will make the child like their parents less when they get older and discover that the parents had sheltered them their whole lives. It has nothing to do with anti-Christian values...it is a fun holiday that almost all kids celebrate. What I compare it to is parents that choose to raise their kids as vegans or vegetarians because they are. Not only is it not healthy for the child at that age to be missing a lot of nutrients, but it is unfair...kids need guidance and info so they can grow up and make their own decisions. I hope that helps a little...