This may sound dense of me - but what, exactly is non-official expenditure? I understand that working lunches/dinners would be official expenditures, while tea in front of the telly would not be. Beyond that though, which would be official:
- Travel to and from family holidays (non-jubilee events) or voluntary events like Royal Ascot
- Haircuts, personal dressers, housekeeping costs
- Spa treatments en route to foreign visits
- Personal passions, like choral music, which Charles adores and employs his knowledge of when planning official events
- Family ceremony - things like baptisms, wedding, etc. Which are official expenditures and which are not?
- Education - is the cost of education of the heir an official expenditure? Behind palace walls - certainly, but outside of palace walls - what is official and what not? And at what point in the line of succession does this change (if anywhere).
- Interests - things like football or polo. At what point does the polo gear become an official expense? When you only play for charity? When it engages with other heads of state? When you are an official of an organization for the interest (by this definition, Wills gets to travel to watch Aston Villa in the official category, but Harry is an unofficial expense if he chums along).
Obviously, I am glad I am not the Prince's accountant.