The Royal Family is an institution steeped in history, tradition and protocol. Much of the habits and etiquette of members of the family - especially senior royals - are informed by decades and even hundreds of years of tradition. Since the passing of the late Queen Elizabeth II, however, the Royal Family has sought to modernise some of its ways, especially when it comes to the younger royals - namely future King and Queen, The Prince and Princess of Wales.

One subtle habit that proves the royals are evolving is easily overlooked, but in fact signifies a wider shift in the way the family members are presenting themselves. Former royal butler Grant Harrold, who worked for the Royal Family 2007 and 2011, explains the tiny detail which signifies something much greater - Kate opening and closing her own car door.

edinburgh, united kingdom may 26: (embargoed for publication in uk newspapers until 24 hours after create date and time) catherine, duchess of cambridge arrives (in a 1966 series 2a land rover defender previously owned by prince philip, duke of edinburgh) to host a drive in cinema screening of disneys cruella for scottish nhs workers at the palace of holyroodhouse on may 26, 2021 in edinburgh, scotland. (photo by max mumby/indigo pool/getty images)
Max Mumby/Indigo
edinburgh, united kingdom may 26: (embargoed for publication in uk newspapers until 24 hours after create date and time) catherine, duchess of cambridge arrives (in a 1966 series 2a land rover defender previously owned by prince philip, duke of edinburgh) to host a drive in cinema screening of disney's 'cruella' for scottish nhs workers at the palace of holyroodhouse on may 26, 2021 in edinburgh, scotland. (photo by max mumby/indigo pool/getty images)
Max Mumby/Indigo

'It sounds like a little thing, but it’s very interesting in terms of an example how the Royal Family is evolving and becoming less formal,' he says, via Select Car Leasing, adding that it is a habit other younger royals too, including Prince William, Harry and Meghan. 'At one time, opening and closing their doors without any assistance would have been unheard of. You never would have seen the late Queen opening her door at public events. Of course she did it in private, but never at official engagements.'

queen elizabeth ii and prince philip attend a service for the order of st michael and st george at st pauls cathedral, london, 24th july 1968. the queen is wearing the star of the order, which bears the motto auspicium melioris aevi. (photo by hulton archive/getty images)
Hulton Archive
Queen Elizabeth II would never open or close her own car door on official engagements.
london, england december 16: (embargoed for publication in uk newspapers until 24 hours after create date and time) prince william, prince of wales, princess charlotte of wales and catherine, princess of wales attend a christmas lunch for members of the royal family, hosted by king charles iii, at buckingham palace on december 16, 2025 in london, england. (photo by max mumby/indigo/getty images)
Max Mumby/Indigo
Prince William and Kate driving Princess Charlotte to Christmas lunch last December.

While the Royal Family are often driven to official visits and events, they all have their own cars which they regularly drive when they're off-duty. 'The King has an Aston Martin, a Defender and a Bentley, as well as some others in the royal fleet. But he sticks to those really,' says Grant, adding that the family members don't tend to share vehicles. Prince William and Kate use their cars to do the school run for their three children, Prince George, Princess Charlotte and Prince Louis, as they like to maintain a sense of normality in their daily family life.

windsor, united kingdom july 02: (embargoed for publication in uk newspapers until 24 hours after create date and time) queen elizabeth ii seen driving her range rover car as she attends day 2 of the royal windsor horse show in home park, windsor castle on july 2, 2021 in windsor, england. (photo by max mumby/indigo/getty images)
Max Mumby/Indigo
The Queen didn’t need a driving licence.
criencester, united kingdom june 17: (embargoed for publication in uk newspapers until 24 hours after create date and time) prince charles, prince of wales accompanied by camilla, duchess of cornwall arrives, driving his 1969 aston martin db6 volante, to play in the burberry cup polo match at cirencester park polo club on june 17, 2005 in cirencester, england. (photo by max mumby/indigo/getty images)
Max Mumby/Indigo
The King driving his Aston Martin.

While all of the Royal Family members who drive have their own licences, King Charles is the only person who doesn't have to have one by law. 'He doesn’t need one as driving licences and passports are issued in the name of the King’s Government - so he’s not required to have one. But he actually has one anyway, as he was obviously driving for decades before he became King,' says Grant.