Notachristmaself, I disagree with most of what you have said there, but the working Royals do have a purpose as long as they are working Royals, no matter how far down the line, they do earn a salary, not handouts, and have some impressive benefits in kind. It is similar to how it works in any organisation, the one at the top gets the more expensive company car, the better bonus scheme, gets to travel first class or on the Company jet, has retention packages and the benefits are descending for those who are not the top dog. .
The RF offspring are well supported by their wealthy parents, which is the case in most UHNW families, In Harrys case, he has been supported by his family, he has huge inheritances, probably a trust fund set up by his parents when he was born, he was given the use of a magnificent home. He lost his salary and his benefits in kind when he decided against being a working Royal.
Andrew was fired from his job, but he had a similar package, and still benefits from BIK, problem is, it was not enough for either of them.