And where exactly does the private wealth of Charles come from?
(Hint: it’s from the duchy established specifically to support the Prince of Wales.)
Hermione, do I really have to explain to you what "public funds" are and what a trust under govermental control is, which was set up to benefit one person and that person only?
You seem to think that all the money the government controls has to go to support the people living in a country and that's true insofar as the Royal family is a part of the people as well. But it depends on how the government can (and wants to) deal with that money.
"Public funds" are eg taxes and while some of them go back to benefit the small people in a country, most is used by those who administrate them to make their own life and their environment comfortable. Few people think of the small people and their needs, that's why children of poor people in the Uk go hungry to school today. Some who think even though they don't have to open up "charities" themselves or pay for them for PR purposes - in any case it is to help people who wouldn't need charitable help if the money was distributed in a way that was "just" for everyone. But I degress and it's never going to happen anyway.
Because the people who rule in the name of all the people have no interest to do so for the poor. Why should they? All the laws that were established from Anglo-Saxon time were based on the idea that there are people who need protection and protectors who for their protection get a better life. The class system! And as those people who are in the upper classes have wanted to keep their children there, too and their money within the control of their family. Understandible, isn't it?
But - after 1000 years(and more), and while living in a very mobile society when it comes to money, we have some really rich nobles (like the duke of Westminster), then really rich industrialists, some financial wizards - all being rich because the laws protect their money and their inheritances. And now there is the Prince of Wales as the Duke of Cornwall. As you said, his duchy was created to support him financially. That's exactly the same as the duchy of Westminster, the money of the Rothschilds, the Guiness beer-money etc. It doesn't really matter who administrates these Royall estates, their whole reason to be is to support certain Royal persons. So we are talking about the former Prince Charles' private wealth, it is not public money but an estate formed over 700 years ago under the law of the land to supply the Prince of Wales with an income. An income, which is as private as the income of any rich Briton. King Charles III. has a public job and gets public funds to do it (for security, cars, travels, staff etc.) but he has a private estate as well (now: Lancaster and the estates he inherited from his mother) and with that he can do as he wishes within the laws. Laws that are not to shuffle money to the poor but to keep Charles, his family and staff comfortable.
The only thing that has changed over the century is the "Crown Estate", which used to be the king's private wealth, too, at a time but was used to fund the king's activities, but George III. decided it was easier for him to exchange the Crown Estate for money from the Civil list (which payed for the upkeep of his palaces and life, but left him with private money as well). Every king and queen regnant after him has given the revenues of the Crown Estate to the government, Charles did it on saying explicitely that that money should be used to the benefit of all people in his kingdom. But never forget: it's still a gift of the Head of the ruling family and if the Britons vote to abolish their monarchy, the laws will give the Estate back to said Head.
So even the "Souvereign Grant" is just a part of what belongs to Charles anyway but was given for the people's benefitWhich makes king Charles one of the most charitable people in the Uk but the revenue is still his gift to the people, not something the people own.
The UK is a country where private wealth is something anyone wants. But people forget nowadays that this put them into the category of a protector of the poor and it just is not done to pay taxes and forget about that. The richter, the educated people should control the government so it cares for the poor in a proper way instead of merely protecting their own wealth. But that's no topic for this forum.