I do wonder about one thing. In the case of close Royal Family members who live in Crown properties. Could it be that at least for “working royals”—like Sophie and Edward—that the small (peppercorn type) rent is justified as living in the house/property/estate is considered part of their support/pay as a working family member?

Of course this would not hold for Eugenie and Beatrice who have never been working family members. At the time Andrew moved into Royal Lodge, I guess he WAS considered a working family member. Perhaps his lease (and other leases) should have been tied to that.

Just a thought.