I’ve never had a case or bumper on any of the 6 iPhones I’ve owned. About a month ago I dropped my iPhone while I was stupidly holding it to take a picture in the same hand that also held the dog leash.
It fell about 5 feet and landed corner first on the sidewalk; dinging the corner pretty badly.
The bottom edge was now uncomfortably rough when I held it in my hand to use it.
I first tried the Apple leather case, then another. They made the phone feel bulky and hampered my ability to do edge-swipes as a back gesture.
Yesterday I got a metal file and smoothed out the rough edge.
I like my iPhone a little better when it’s naked.