
Prince William and Kate Middleton's children—Prince George, Princess Charlotte, and Prince Louis—are bound by strict protocols regarding their dining companions during official dinners and holidays, including Christmas. Interestingly, they are prohibited from sharing a table with their parents during these significant occasions. Here's the reasoning behind this arrangement.

As reported by the Mirror, former royal chef Darren McGrady shared with Harper’s Bazaar that until they have mastered the art of polite conversation, Prince George (10), Princess Charlotte (8), and Prince Louis (5) "are not permitted to join the adults at the dining table."
McGrady also divulged that even on festive occasions like Christmas, the young royals, offspring of the Prince and Princess of Wales, enjoy their meals in the company of their nannies within the nursery. This practice continues until they reach an age where they can display proper decorum and etiquette befitting formal dinners. The esteemed chef added that "the children always dined in the nursery until they reached an age of comportment suitable for formal dining."
McGrady emphasized the pivotal role of the royal nursery, which extended beyond "nurturing the intellectual growth of the young royals" to cultivating their culinary preferences. The royal nanny curates the menu for the royal youngsters, ensuring not only a healthful, well-rounded meal inclusive of vegetables but also exposure to more sophisticated dishes.
Chef Darren McGrady, who served as a personal chef to the late Queen Elizabeth II, Princess Diana, and Princes William and Harry for fifteen years, shared on his YouTube channel that the Queen had a penchant for jam sandwiches during her afternoon tea. He recounted that "as a young girl, the Queen enjoyed jam pennies in the nursery, a tradition she upheld during her tea time." Furthermore, during her stays at Scotland's Balmoral Castle, fresh garden strawberries were transformed into delectable spreads.
When indulging in scones, the Queen's approach involved layering jam before generously applying the rich clotted cream—a unique preference that delighted her palate.