Will my iPhone be scratch free?

I didn't by a protective film for scratches. I'm going to get one in two weeks. I stays in my pocket most of the day. If I don't drop it will my phone be scratch free?

The phone itself does come with a scratch free coating, but what I can honestly say is that, I have a protective film on my phone and the scratches on the film speaks a lot. I mean, if it weren't for that $5 piece of film, those scratches would be in direct contact with my phone. You can't see it, but it's there and what if you accidentally put your keys in your pocket too? A two year contract with a giant scratch, doesn't go down too well.