So, lacking a story to share, I just made something up:
My daughter is almost two and we've already told her straight up that there's no Santa Claus, no Easter Bunny, no Tooth Fairy, and no God. She also knows that life is dark and meaningless. There's nothing cuter than hearing a 2-year-old say "I'm a nihilist."I don't really remember when or how I stopped believing in Santa Claus, but I suppose it was ultimately good practice.
What about you? Do you have a story to share, either about when you found out or when your kids did?