Dear iphone 5 users, is it very easy to scratch the back of the iPhone 5?

Like during normal uses, assuming no drops. Is it very easy to scratch, or okay but have to be careful? If it is super easy I think I'm going with the white. But I prefer black generally.

Yes, it is. The white is better for that though. But why not just use a case or screen and back protectors? This is what my friends do.

It's generally easy to make minor scratches, but big, visible scratches are much harder to make on them. Unless of course, you drop it. Then you'll definitely get some huge scratches in there, if not an unlucky shattered screen.

Polished aluminum, just like many other materials, can get scratched easily. If you have every seen the iPod touch 4, its polished stainless back scratched by just touching it.