Ingrid Seward said the royal couple may feel “more secure” with six-year-old Prince George attending a boarding school, where he is “protected”, like his father William and uncle Prince Harry. She said Kate and William could break away from royal tradition and not send Prince George to a boarding school because he is “shy”.

But she said they would consider their decision about George’s future “carefully”.

Ms Seward told Ok! magazine: “Kate and William are modern parents and will weigh up the decision very carefully. I think they’ll wait to see how the children’s personalities develop, and take into consideration whether or not they would be happy to live away from home.

“Having experienced terrible trauma in his own childhood, William is very tuned in to his children’s mental health.

“We’re used to seeing the royals breaking with tradition these days so it won’t be a huge shock if they do things their way.

“I think William and Kate’s view will be, if the children are happy in their school, why change things.

“If I was Kate though, I’d feel more secure if George, as heir to the throne, was tucked away at boarding school. He’ll have more freedom there and he’ll be very protected from any outside dangers.”

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“It’s a super friendly school so it could be a good choice for George.

“He might then follow his father to Eton College for his secondary education. I doubt the royals will have to go on any waiting lists, so they won’t need to rush their decision.”

But Ms Seward warned Kate and William would not rush their decision because George, 6, could be “quite the shrinking violent” like his grandfather Prince Charles.

She added: “But George is a shy little boy, so he might not have the right character for it just yet.

“William was very boisterous at six, but perhaps George is more like his grandfather Charles, who was quite the shrinking violet.

“The photos of William and his brood suggest that George and his younger siblings are enjoying a very carefree childhood.”

Kate and William have been homeschooling Prince George and his sister Princess Charlotte during the coronavirus pandemic.

The pair are are both pupils at the £19,000-a-year Thomas’s Battersea in London.