iPhone 7 screen scratches too easily

So i have been using my iPhone 7 plus Jet black for 2 weeks. i have noticed some hairline scratches on the screen already.... i have been taking good care of it and have no idea how the screen got so easily scratched. Never had a problem in the past.... I'm using a case as well, was waiting for my screen protector to arrive when i noticed this problem. So for anyone using the new iPhone 7, go get a screen protector.