My DD3 still believes in Santa as far as I know, but I have to be on my toes since she doesn't miss a thing. I want her to enjoy this magical time and to indulge in fantasy a bit. For all I know this may be her last Christmas believing since so many start to question around four. If we go to visit the mall Santa and another Santa and they look different in any way, which they will, she will notice and ask. I am surprised others don't, but I think she wants to believe.