So it was a real surprise when Catherine and her two eldest children, George and Charlotte, were photographed attending the Maserati Royal Charity Polo match in Gloucester on Sunday, in support of dad William.
A shy Prince George, four, looked on as his outgoing sister Princess Charlotte, three, attempted hand stands, and Kate was seen getting stuck in as she rand around playing with the youngsters.
"George was seen climbing into an air ambulance vehicle - his father Prince William was a pilot with the East Anglian service until July a year ago".
Okay, okay, slight exaggeration but it is refreshing to see the royal family having a day out just like anyone else.
But it seems the Duchess of Cambridge has snubbed pricey labels in favour of a high street bargain for George and Charlotte's summer wardrobe.
Prince George kept Kate entertained. The three-year-old appeared to accidentally slip and hit her head on the Buckingham Palace banister, but Middleton consoled the young princess and helped her recover in no time. Just a day before, the family attendied the Trooping the Colour ceremony - so were likely happy to enjoy a more relaxed day out on the Sunday.
Prince Louis - who was born in April- was not there for the outing.
The little princess was also wearing an adorable £34 "Amelia" floral dress from The Little White Company and a pair of matching pink sunglasses.
Savannah Phillips is the granddaughter of Princess Anne, Queen Elizabeth's second child, and now Internet's favourite new royal. I really don't get toy guns - why play with things you should never have to use Kate alone shouldn't be blamed about this as we don't know who owns the toys, but someone should have said that this is NOT OK'.