By Emma Mackenzie Royal fans won’t often see Prince William and his wife Kate holding hands in public, despite just how much of the time they spend in the spotlight. It’s a rare occasion when the couple engages in public displays of affection, which is a far cry from other members of the Royal Family, like Meghan and Harry who have never held back their affections at public engagements. According to an expert, there is one major reason why William and Kate so rarely choose to hold hands when they are out and about and it’s to do with William’s role as future King. The expert also claims that t…