He added: “Accordingly, in a world less driven by social protocol and deference it seems imminently sensible that members of the family, who will not have a front line role, are not encumbered by the limitations a title might bring.
“Certainly this has been the common explanation given by those who have refused titles, allowing their children instead to pursue a more private life, albeit in a public way, whilst remaining a member of the wider royal family.”
Despite Meghan and Harry’s wish to raise Archie as a private citizen, he will automatically become a prince upon Prince Charles’ accession to the throne.
Whether or not Archie chooses to use his royal title will be up to him when he turns 18.
Mr MacMarthanne claimed there is a chance Archie could rebel against his parents’ wishes to reclaim his royal birthright.