Have you read the original response to Virginia O'Hanlen's question? "Dear Editor, I am eight years old. Some of my little friends tell me there is no Santa. Papa says, if you see it in the Sun, it's so. Please tell me the truth. Is there a Santa Clause?" The response is wonderful (look it up, if you get the chance), but in a nutshell, the editor tells her that Santa exists "as long as love, and generosity, and devotion exist, and you know these abound, and give to your life its greatest joy and happiness." Our family has always made our own "magic." Even to the point of my husband and I sneaking things into each other's stockings, and my brother and I sneak things into our parents' stockings, and they do each other. Never with tags, of course -that spoils the game.
I don't think my daughter really believes in the Easter bunny, or Leprechauns for that matter, but there are fake gold coins in the yard on St. Patrick's day, and eggs in the yard on Easter. I suspect she knows, and she's only four - she's hasn't even been introduced to the tooth fairy, yet. But it doesn't matter. Mommy and Daddy Magic make it work, so she accepts and plays the game.
And Family Magic is made out of love. When your child understands, he can be part of the Magic games, too. It's fun, and sometimes a surprise to see what we can all come up with for each other. And it needn't be for any reason at all, once the games start. It's the same as leaving love notes in your child's lunch box, or your husband's sock drawer. I view the Tooth Fairy, Santa, et al, as an introduction to the game.
It's the same reason we put a penny in the box at McDonald's "for the sick kids." And the same reason I write "Santa" whenever I'm supposed to give a name on donation tags (any time of year!). These mythical fellows let us be anonymously generous.
Sorry - got a bit philosophical, there. The gist of what I'm saying, I guess, is that yes, you are the tooth fairy. But "love" is also the tooth fairy. "Generosity" is also the tooth fairy. And love and generosity are their own kind of magic. We didn't get told about Santa. We learned how to be Santa.