Seven million dollars sounds like a lot, but a lesson I learned early in life was it does not matter how much money you make, it is how much you spend.
The Prince grew up in an environment where money did not matter. He had access to a lot and every need or want was accommodated. So the idea of a budget will never occur to him.
He is in effect Nouveau riche where the decisions he makes will determine just how long he remains rich. Like many he does not think the money stream will every end and so does not save or plan if it does.
I suspect he is now or soon will be living beyond his means.
I can picture a divorced Halfwit ending up as a poor relation to his brother William in the future. He couldn’t manage to marry a rich heiress from his circles or a rich A-lister from the celebrity world the first time around, so I don’t think his prospects for finding a rich second wife are that good. No woman of means or substance wants to marry him, and in future he will have the added baggage of children to support and a vituperative ex-wife.
I read Harry gets a generous monthly allowance from his father. Also they signed a lucrative Netflix deal.