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4. They Eat Separately From Their Parents
Because of the royal family's German roots, Christmas Eve is just as important as Christmas Day. In fact, some might argue it's even more special. That's why the Windsors throw a black-tie Christmas Eve dinner, which has guests arriving in their best attire. 

During the black-tie Christmas Eve dinner in Sandringham, the kids aren't in the main hall with the adults. Instead, the youngsters eat at a kids' table in the nursery, which is located on a separate floor. Because of this, it has become quite the rite of passage for a child to be deemed mature enough to graduate from the nursery table to the great hall.