[user104658]

Tbf things like new coinage and stamps are not really extra costs as they don't collect up all the old ones and replace them, they just start putting him on the new ones as and when they're made. Vast majority of coins in your change will likely still have Her Maj on them.

The rest though yes a huge expense. The Monarchy itself is a huge expense. And while I agree with doing away with that ENTIRE expense on principle... I don't understand why there's extra outrage about this relatively small slice of that expense.