You can't just 'quit' the royal family. Especially if your plan is long term to cash in on the royal connection through media deals to be independently wealthy.
The idea that they can just walk out and then decide to live off the family name is utterly hypocritical and ridiculous.
But this is the point isn’t it that Prince Harry won’t ever not be Prince Harry even if he abdicated HRH as Diana did. He cannot ever not be a member of the RF so the idea that he could just leave is a complete illusion.
The idea they could ever have proper normal jobs is also a fantasy. The amount of attention around them and the security risk (whether or not they have royal protection) will cut off many lines of work. It’s not as if Meghan can even go back to acting. Any dark story lines or sex scenes will look dodgy for someone with royal connections.
It seems reasonable to me not to leave the whole family in the lurch and cut all ties - but keep the door open. I also think that charity work is one thing they could usefully do, so why not. But I couldn’t care less what they do or how much money they spend so I don’t really understand why people are getting so worked up about it. The only question that is any of the public’s business is the issue of paying for royal protection.
Personally think we should stop the whole monarchy lark altogether. In the mean time people might as well accept that members of it are rich and privileged and don’t live normal lives. If that gets up your nose, vote for a republic.