Sunglasses

What's the deal with the style for sunglasses these days? They are huge ass glasses that cover up half the face and make people look like aliens. It's like "Look everyone, I have eyes! I have eyes! Ooo, look at me with my cool shades!" I mean do you HAVE to have such huge ass sunglasses to shield your eyes from the sun? I mean, I wouldn't want to have a second purse just so I have a place to keep them!