What - you don't celebrate your half birthday? Well, your real birthday must not be 7 days before Christmas. Perhaps your real birthday is in the summer, and you have two exciting events to look forward to throughout the year: your birthday and Christmas, rather than the two just blending together. Your real birthday party has probably never been rained out or held in the dark even though it is only 4 pm. Your piñata candy probably hasn't fallen into a puddle of rain water. You have probably never had the Noro Virus during your real birthday party because your party is not held at the peak of flu season. If you had experienced these real birthday woes, you would definitely have started celebrating your half birthday by now.
Just in case you decide to start, I have to tell you that no half birthday celebration is complete without half of a birthday cake and 4 1/2 candles (or however old you are). Oh, and a kite from your Aunt Cindy makes things even better. Just in case you decide to start. :)