Celebrities are neat, but have you seen their kids? Genetically blessed cherubs with designer duds and pricey toys, these famous kids are taking the world by storm. Are we jealous? A little. Would it have messed up our lives if a pony or European adventures or a yacht had made regular appearances in our childhood? Probably not. So here are the times in 2013 we felt jealous of children — really, really rich children.