However, from the moment the Duke and Duchess of Cambridge drop off their apprehensive son in his brand new uniform on Thursday, a slick, well-rehearsed security operation will come into force created to ensure both the prince's safety and that of other pupils.
But while his parents planned to drop him off at the gates, it now appears Kate may be kept at home by hyperemesis gravidarum, the severe sickness associated with her new pregnancy.
She is now being cared for at Kensington Palace, meaning she may miss out on taking her and Prince William's eldest child to his first day of school at Thomas's Battersea on Thursday 7 September.
"It's looking highly unlikely now", the source said.
Want more celebrity, entertainment and lifestyle news? After officially announcing her third pregnancy, Kate Middleton discovered the trial verdict regarding the case of photos of her bare breasts, unveiled in Closer, in 2012.
"I think as modernising royals they had a golden opportunity to break the mould and also do something to address the educational apartheid system that we have in this country, which sees the educated elite go to the top universities and then take the top jobs", she said.
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Prince William's wife, the Duchess of Cambridge, is pregnant with her third child.
It is understood a decision over whether the Duchess of Cambridge will accompany George to his new school will be made in the morning. "It's always a bit anxious to start with, but she's well".
Prince William, Duke of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge depart from Hamburg airport on the last day of their official visit to Poland and Germany in July.
However, a prime emphasis will be the comfort of four-year-old Prince George and his fellow pupils, and to that end, there will be minimal impact on the children, whom it is hoped will not even notice anything.
Kate was forced to pull out of two public engagements on Monday and Tuesday after suffering from hyperemesis gravidarum, as she did in her previous pregnancies. "That is what they want and, to a large degree, that is what they get".
George and his classmates will be taught a range of subjects and activities from ballet and art to drama, French, music and physical education.