It's a weird conundrum isn't it?
Imagine that you are told that your village/town owns a communal property. It belongs to all of you but no one can live in it and the members of the community can only visit a small part of it - maybe a portion of the grounds and a reception room or two. A wealthy family gets to lives their full-time however. They can decorate it to their tastes and are the only ones allowed in the vast majority of the property. In fact, you as a supposed owner, can be arrested if you try to access off-limit parts of what is supposedly YOURS. Then, to add insult to injury, you're told that a portion of your council tax is being siphoned off to renovate, redecorate and heat the place. Under any other circumstances, people would see this for the madness that it is.
Basically, when it comes to the responsibility and the costs, the royal properties belong to the State and when it comes to the access and usage, they pretty much belong exclusively to the RF. Very clever.