I guess I don't understand the question. Is Santa God?

There are lots of stories surrounding the celebration of the winter solstice that have become Christianized - and there is a huge amount of tripe we feed our kids that we know is not true.

Or are you a firm believer in the tooth fairy?

As far as kids and presents are concerned, Santa and Christ are ... unrelated. If you're Christian and you have children, as an experiment, ask them how the two are related. Do you really think any kid is going to say that Santa was sent by God? Maybe if prompted for it - but most kids will associate Santa with presents, Santa and elves, Santa and reindeer, Santa and any number of products being hawked at the time - but not Santa and Christ, or Santa and God.

As an agnostic, yes, I celebrate Christmas, and no, I don't tell the kids around me that Santa doesn't exist. Nor do I tell them which God to believe in. And that's OK because they don't ask.

What they believe in, in the long run, is up to them.