Congratulations to Louis for reaching a notable milestone that may have gone unnoticed. During a recent appearance, he surprised royal fans by wearing a full suit for the first time, just like his older brother Prince George and their father, Prince William. Typically, male members of the British royal family start wearing suits at around the age of seven. Prince George wore his first navy suit with a striped tie when he was seven years old to attend the Euro 2020 final.

In previous public appearances, Louis has been seen wearing shorts or trousers paired with a knitted sweater, just like his brother and father. Traditionally, boys in this social class would wear shorts until they were old enough to switch to trousers. Etiquette expert William Hansen notes that boys usually switch to trousers around the age of seven. Upper-class families tend to keep their boys looking cute and innocent for as long as possible, which is why Prince George often wears shorts.

Fans often compare Prince William and Prince George, especially in old photos, where they look very similar. An adorable throwback photo shows a five-year-old Prince William leaving a Christmas service in 1987, wearing a pale blue duffle coat with white socks. He happily waves to the crowd, just like his son Louis does today. Another sweet moment from a recent service saw Louis snuggled up to his mother, Catherine, while they sang Christmas carols, highlighting their bond.

Louis made a cute request to his mother about a secret he was asked to keep from his sister, Princess Charlotte. Catherine mentioned that she asked Louis to help keep a secret about a soloist from the Royal Ballet performing at the ceremony. Louis wasn't the only one in on the surprises; at last year's Christmas Carol concert, Catherine performed publicly on the piano for the first time.

As the family arrived for the Carol, Louis held red cards for the kindness tree. He stopped to share a message he had written to his grandparents, thanking them for playing the game with him. The sweet note comes after Catherine's parents made a brief appearance in her September video update about her cancer treatment, where they were seen enjoying some family time.