So it is rather fitting that the Duchess of Cambridge should follow suit for her second official engagement since the Royal Wedding with husband Prince William today.
Kate was all smiles in an elegant in cream Amanda Wakeley dress and her favourite L.K. Bennett nude heels at the Royal Marsden NHS Foundation Trust in South London.
A sleep-deprived William, who flew a mercy mission just hours before opening the new £18 million children's cancer unit, looked slightly less sprightly in a navy suit.
During the visit, William will be reunited with Alice Marples, a cancer patient who interviewed him two years ago for the CBBC Newsround programme.
The 12-year-old, who is due to fly to America to receive radiotherapy for a brain tumour, will present Kate with a bouquet of flowers when she arrived at the hospital.
'Through his close connection with the hospital he has met many inspirational young people, like Alice, who have shown such bravery in battling their illness.
'Tomorrow, he is keen to show the Duchess the incredible work the Royal Marsden does to help Alice and others like her.'
He took over from his mother, who took on the role in 1989 until her death in 1997.
The royal flew back to his base at RAF Valley on Anglesey just after 9am before making the trip to open the Royal Marsden's new £18 million children's cancer unit in Sutton, south London, a few miles from Sandhurst.
The duke, an RAF search and rescue force helicopter co-pilot, carried out the 'compassionate call-out' during a normal 24-hour shift which also saw him help pick up a casualty with serious head injuries in Snowdonia.
A St James's Palace spokesman said the duke would have got little, if any, sleep and was expected to arrive at Oak Centre for Children and Young People on a royal flight helicopter this afternoon.
His wife, who was in London, was arriving by car.
The royal couple have been enjoying married life together in North Wales since their glittering nuptials in April.
They have deliberately kept a low profile over recent months as the Duke, a flight lieutenant with the RAF Search and Rescue Force, is focusing on earning a promotion to captain.
Source : Daily Mail.co.uk