Please bare in mind that I'm old fashion and I simply just don't understand the concept of having sun glasses that are almost half the size of your head. It's just a question I've been meaning to ask for some time. My guess is that I think it's trendy. Feel free to place your input.
Well I don't wear Paris Hilton sized sunglasses but I like bigger sunglasses versus smaller ones because they block out all the sun. With smaller ones you still get sun from the sides or top and bottom, but I like the ones that are a litte biggers so it covers those angles too.
I don't like those sunglasses at all, really. Lols. To me, whenever I see people wear them, I think they look a bit like insects. But I just think that it's a matter of tastes and trends. Every decade has at least one embarrassing or strange fashion trend, and the people who used to follow it eventually look back and say "what was I thinking when I wore that?".
I think it has become popular in my area and in America in general. But why thick and large? I think it would have to be because the movie stars and famous celebs. wear them. I personally always thought of them odd a bit. I can see why you are asking and what to read other women answers =)