No, it is definitely not a sin. Santa is fictional. If your child asked if somebody is going to murder them tonight, and you told them no, would that be a sin? You don’t know for sure.
It is not the same. You
know Santa doesn’t exist. On the other hand you don’t know whether you’ll be murdered or not tonight. Given the small percentage of that happening -and you trusting in the Lord- you can safely say that you won’t be murdered tonight. But with Santa you
know he doesn’t exist but yet you willingly tell children he exists and this is bad, in my humble opinion. To make your own comparison better, it’s like telling someone he won’t be murdered when you
know he’s going to be murdered or the opposite, telling him he
will be murdered knowing for sure that he won’t.
It’s not a sin to say ‘you won’t be murdered tonight’ since you don’t know for sure (by the way, since you don’t know for sure it is better to express doubt instead; e.g.: “-Will I be murdered tonight? -I don’t know.” instead of “yes” or “no”) but you
do know for sure that Santa doesn’t exist. The second -with Santa- is pure lying since you
know Santa is not real but yet you tell them he’s real. The first is not since you simply don’t know (and as I said, it is better to express doubt regarding the question instead).
What I’m trying to say is this - you’ll live a more peaceful life if you don’t over-interpret everything. Santa is not only fun, but can be used as a great tool to introduce children to the concept of a saint.
But Santa Claus is not a saint. Why not teach them about a real saint like Jesus, Paul, Abraham, David, etc.? These people are saints for they put their faith in God, and this faith was accounted as unrighteousness. Does Santa pray to God? Wasn’t it that children pray
to Santa? How many times have we seen imagery of Santa praying to God, asking Him for help, etc. Santa doesn’t relly upon God at all. Does Santa lead children to God or is he actually becoming some sort of substitute for Him?
By allowing a child to understand Santa at a young age you’ll better be able to explain to them sainthood when they grow up thanks to Ol’ Saint Nick.
I do not understand. What do you mean by ‘understand Santa’? And as I said previously, Santa is not really a model of what it means to be a saint.