Local Realms for consoles (explanation within)

So when multiple people play on one system (I'll use me and my brother as an example) its pretty common for the world to start using split-screen on my user with his user as player 2. Now the problem that arises with this is that if I'm not playing, neither can he unless he uses my user, but then he doesn't have his inventory and he might lose mine if he's not careful.

I assume you can see the problem here? Well heres my idea.

Local Realms! It's simple, just have the save data transferred away from the user files and onto the shared files and then it can be loaded by either user with their own inventory, much like a realm allows for anyone to join at any time. If necessary you could also allow the original user to block certain users from joining the world if they are... untrustworthy... 

I know its possible on the switch (my personal system of choice) and as far as I know it should be possible on Xbox and PS4 if that ever comes to bedrock, so please consider adding it!

(and please don't make it paid like you've done with so many other things...)