Anything our son thought was important/cherished went with him to boarding school but, of course, we kept his bedroom intact through those years. Prior to moving to our current home, we made him go through his old room one last time to identify anything he wanted moved to the new house. After boarding school, stuff that couldn’t go with him to the academy came to this house where he owns the casita. On an earlier thread, I posted what I did with that space after he commissioned and moved to his first duty post.
So, technically, yes, he (and every other guest) has a space to call his own when he visits, but he hasn’t been home in four years, so he hasn’t used it in its renovated state yet. He and his new wife will be coming here for a week in January and that space will be all theirs for as long as they can stay.