Barsel
Prince Charles ( Prince of Wales and Duke of the Duchy of Cornwall) supports his SONS and his WIFE. He does not support his siblings (Anne, Andrew ,Edward, or any of their family.) When Charles becomes King and William becomes the Prince of Wales then William will support his sons and daughter from the profits of the Duchy. He will not support his father ( Charles) nor his fathers wife (Camilla). He will not support his brother (Harry) and SIL (Megan). All the aforementioned have private incomes and I guess handouts from the Royal 'Purse' . The Duchy of Cornwall is a private enterprise worth around £20 billion, owned and managed by the Prince of Wales and linked to the hereditary title of the Duke of Cornwall. If he decides to support his brother Harry that is a private arrangement , though I doubt, the way the land lies between them that he won't, and Harry would not accept it anyway.