Unfortunately, we don’t know enough yet about the spirit world to understand why ghosts seem to be partial to clothing. In fact, we don’t even know definitively whether ghosts even exist. Assuming for the moment that ghost are real, doesn’t it make more sense for them to be naked?
Perhaps the reason why so many ghosts never choose to appear as a full-bodied apparition is due to the fact that they have nothing on. This may help explain why we only see images of ghosts when they are fully clothed. Note to any paranormal investigators, if you want a spirit to appear, bring an extra set of clothes.
Some of the more common outfits that ghosts seem to favor according to numerous sightings include a long flowing white dress, a soldier’s uniform (Revolutionary War, Civil War, WWII), Victorian era clothes, overcoat, miner’s clothes, and 1920’s clothes.