We all should have purchased the "magic" matte finish phones that are super scratch resistant.
I also don't use a screen protector - and I don't baby my phone. OH MAH GAWD TEH HUMANITIES
For the record that 6 Plus was a launch day - used by me for a year and my husband for another year, and the only case he slapped on it was an Apple Leather, for when he's working on the car or his motorcycle. It's flown so many times...and still not bent.