I have this fancy metal screen in my bedroom:
It matches the metal bed frame I inherited from my parents when I moved out of their house, and is nice and old timey (I'm a bit of a history nerd). I like the "pretty, but rustic" look.
It sits off to one side of my bedroom, "hiding" the door to the bathroom (which is blocked by cat litter boxes on the other side, so I don't use that door). It has no purpose other than to be pretty and decorative.
I have found a second use for it:
Who knew, right?