But more often than not, the accessory fills both the practical and impractical roles simultaneously because of its style.
But whichever thing or things you choose, remember that from an Attire language standpoint, too many accessories is like repeating yourself in conversation. It quickly becomes tedious.
Are there those who can get away with a myriad of accessories all at once and not look ridiculous? Sure; but for most of us, its a tough thing to pull off. When you see someone with a lot of accessory items in play at once, and its working, its usually because they all relate to one another harmoniously in style, color, texture or point of origin. For example, someone wearing masses of bakelite bangle bracelets in differing colors is less at risk of seeming to be overdoing it; because the jewelry in use is all related to itself.
However you want to present yourself, whether that is quietly, or with a blaring fanfare, its the accessories you have to hand that can make that clothing sentence really precise.