Prince George is growing up knowing that one day he’ll ascend to the throne, but Kate Middleton is making sure to keep her eldest child grounded while navigating royal life. “Most of the time he is enjoying the life of someone from the upper middle classes, and spends a lot of time with Kate’s family, the Middletons,” royal author Phil Dampier told an outlet. “However, he is growing up fast and William and Kate are slowly preparing him for his role,” he added. Kate is often praised for bringing a relatable energy to the royal family, as the Princess of Wales didn’t grow up in the aristocracy. …