Does anyone else do this?
Some friends of ours have this tradition. They argue that nobody wants to be spending half the day in the kitchen on Christmas day so they have a their main christmas meal the night before, leaving Christmas day to focus on DCs and not be worrying about the turkey :)
Must admit to being very tempted to do this. DCs are too excited to sleep and it would be a grown up treat to stay up late and have posh dinner with parents. DCs unlikely to eat much through excitement of either day so not much to lose on that score either.