Originally Posted by
Ghoulish
Doors certainly provide a greater degree of privacy, especially while laying down, as do moveable partitions between center seats.
As for "anyone can look over", I've never encountered that creepy behavior, but it would take a degree of effort that they'd come to regret, unless it was an FA.
Explain how that is needed. It's J on an airplane, not a changing room in a store. How much privacy do you really need and are you willing to give up other features/space to get it? Just doesn't make sense.