The 4-year-old prince joined the royal family’siconic holiday walkto and from St. Mary Magdalene Church at Sandringham for the first time on Sunday, layering a navy dress coat over a plaid shirt, burgundy shorts, knee-high navy socks and slip-on loafers. While the rest of the royal family members in attendance were more bundled up for the December weather,Prince Louisnoticeably wore shorts — a time-honored tradition for young British princes.

Though Louis didn’t seem cold (with momKate Middletoneven chatting with well-wishers about the temperate weather in aTwittervideo), it’s typical for upper-class boys in Britain to wear shorts in their younger years.

Mark Cuthbert/UK Press via Getty; Samir Hussein/WireImage

Prince Louis Christmas outfit

“Boys wear short trousers until they are 8,” Ingrid Seward, editor-in-chief ofMajestymagazine, previously told PEOPLE. “It is very English.”

Samir Hussein/WireImage

Catherine, Princess of Wales, Camilla, Queen Consort, Prince Louis, Prince George, King Charles III and Prince William, Prince of Wales attend the Christmas Day service at Sandringham Church on December 25, 2022 in Sandringham, Norfolk.

“It is considered very suburban for a little boy to be in long trousers when he is just a little boy,” Seward continued, pointing to how graduating to long pants is an exciting milestone.

“It is shorts until you’re 8 and then ‘woo, you’re in long trousers,’ " she said. “They suddenly feel very grown up.”

Prince George in red shorts in Canada 2016.PHOTO: Tim Graham Photo Library via GettyPrince George in red shorts in Canada 2016.PHOTO: Sam Hussein/WireImage

Prince George in red shorts in Canada 2016.

British Royal Diana, Princess of Wales (1961-1997), wearing a Glen Plaid suit, and her sons Prince William and Prince Harry, both wearing red sweaters and striped shorts, after their arrival at Aberdeen airport in Aberdeen, Scotland, 14th August 1989.

Prince George

PHOTO: Tim Graham Photo Library via GettyPrince George in red shorts in Canada 2016.PHOTO: Sam Hussein/WireImage

Prince WilliamandPrince Harrywere often dressed in shorts when they were little boys, as was Louis' elder brotherPrince George, 9. When George made hisSandringham Christmas walk debutwalk in 2019 at age 6, however, he wore pants — proving that that shorts are simply a suggestion.

Kate Middleton, Princess Charlotte, Prince William and Prince George at Christmas 2019.Joe Giddens/PA Images via Getty

The Duke and Duchess of Cambridge and their children Prince George and Princess Charlotte arriving to attend the Christmas Day morning church service at St Mary Magdalene Church in Sandringham, Norfolk. (Photo by Joe Giddens/PA Images via Getty Images)

George and Louis both wore shorts for theWales family Christmas cardthis year, coordinating in polo shirts, blue shorts and sneakers. Their parents Prince William and Princess Kate, both 40, were similarly casual in jeans, while their sisterPrincess Charlotte, 7, wore a denim romper.

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Kate Middleton and Prince William Christmas Card 2022

“Sharing a new picture of the family for this year’s Christmas card!” the sunny snap was captioned on social media.

source: people.com