The one thing I’d like William to do is formally introduce the Nolan Principles to the royal household and royal family. These principles are Selflessness, Integrity, Objectivity, Accountability, Openness, Honesty, and Leadership.
In my fantasy world, I’d specifically like to see a rule that members of the royal family with a title and/or in receipt of any funding that originates from ‘the public purse’ eg the sovereign grant, or who receive(d) money as an adult from relatives who have benefited from sovereign grant or Duchy monies, must adhere to the Nolan Principles of Public Life, or lose all titles, styles and honours, and lose all funding from the government and royal family coffers (excepting state and occupational pensions accrued honestly). Security needs will be decided by RAVEC.
When I rule this fantasy world, there will be a judge-led committee that investigates dodgy royals and makes recommendations to the monarch, the PM and one other senior judge. If the monarch him/herself is under investigation, the recommendation will be handed to the Heir, PM and judge. Or something along those lines.
Short of becoming a republic, radical change is much more important to me than voluntary mini-performances of bobbing and whatnot.