Though Prince William and Kate Middleton’s kids — Prince George, Princess Charlotte and Prince Louis — are royalty, they don’t act like it behind the scenes, according to an insider. “The world doesn’t get to see that they’re just normal kids, acting up and being silly like most children,” an insider said of the three tots, who are being brought up away from Buckingham Palace. “Kate and William are raising happy, well-adjusted kids.” “They all have their cheeky sides that come out in private,” the source dished. “For the most part, George and Charlotte are very close and well-behaved, while Lo…
