If I remember correctly, the last phone that I used all naked was the iPhone 6s+, anything after that would have a case, and from the XS Max (only iPhone I skipped and never bought was the iPhone X, was too small for my liking, always liked bigger screen phone), I started using both the Apple Leather Case & Screen protector.My mentality is I pay this much for a phone I want to enjoy it, I do however use a screen protector more for the scratches than breakage of the glass I also own a case for times where I'm somewhere where a little extra protection is needed like if I'm working in the scene shop where I'm more likely to hit my pocket with something hard and heavy but most the time teaching / being a student doesn't really have any risks