My father, you won’t be surprised to hear, is not a billionaire who, until a few months ago, served as the 45th president of the United States. But if he was, do you know what I would be doing right now? Swigging champagne on a yacht in the Med with the internet off, I reckon. You know what I would absolutely not be doing? Selling sad little videos of myself saying “Hello!” and “Happy birthday!” for $500 a pop on a video messaging service called Cameo. And yet, according to recent reports, it seems Donald Trump Jr is spending his days doing exactly that.