Oh blimey, I wouldn't tell them until they come to me and ask because they have heard someone say, there is no way I would take that magic away from them.....jade is 8 and she loves the thought of father Christmas and gets so excited, I wouldn't have it any other way, it does not last long their innocence, so don't be in any hurry to ruin it! It is magic when you are a kid and have all these things to believe in! x