Joshua Claybourn writes that Christian parents undermine the faith of their children when they teach them that Santa Claus is real:
Children are taught to believe in both, and when the non-existence of Santa becomes a reality in adolescence, God will likewise get scrutinized. The blatant lying to children about a figure they already associate with God cannot yield beneficial results. Anecdotally, I know of a number of folks who resent their parents lying to them about Santa, and if they lied about Santa, the belief is that they lied about God, too.
Should Christian parents teach that Santa Claus is real?
Hat tip: Joe Carter