I'm not really sure about the idea that Charles is a "caretaker monarchy." I feel like it's an assumption that's been made due to his age, but Charles has shown more passion and real commitment to a cause than many royals, so it seems odd to think that he'll be simply keeping the seat warm for William, who will somehow be more memorable and transformative. That this is often said in the same breath as discussing William's seeming lack of passion and lack of work is particularly strange.
While I think it's fair to assume Charles won't have a long reign, given the human body can only last so long, I don't think that necessitates that he's just holding the seat for William.
While I think it's fair to assume Charles won't have a long reign, given the human body can only last so long, I don't think that necessitates that he's just holding the seat for William.