Isn't that what Barack Obama does already?
I used to be royalist until I realised (finally!) they have so many hidden depths. Is there no limit to the power and control they wield over the truth? And anyway, just how do they benefit us now?, and how will they do so in the future if the young princes are anything to go by?. If they did something, apart from making appearances every so often, it may well improve the view that many ex royalists hold of them.
Diana had the right idea, 200 public appearances during her final year as a Royal, whereas *for instance* Charles, William and Harry, haven't done that many between them since her untimely, and calculated, demise.