Other mistake: Near the beginning, Scott and Charlie are flying in the sleigh down a road next to a truck. During the entire scene, the truck driver is constantly jerking the wheel to the right and left yet the truck remains in a perfectly straight course.
Other mistake: When Santa falls off Scott Calvin's roof, he slides in a straight trajectory that lines up just off center of the front door, meaning Santa should have fallen smack down on the snowless concrete walkway, not a few feet over onto the snow-covered lawn.
Other mistake: A Federal Express driver delivers hundreds of boxes to Scott Calvin. They contain the names of all the children in the world. Scott opens a box and picks up the top page and begins reading the names. The second page in the box is identical.
Answer: Because Neil thinks Charlie is old enough now that he should no longer believe in fantasy figures like Santa Claus.
raywest