I very much second this: the camera is like the snakes game on old Nokias, it's very cool it's there but it's not what I need the most.
Also, the Apple Watch has dramatically cut down on the number of times I have to fish my phone out of my pocket; usage patterns shouldn’t be discounted.
If I had kids using my phone all the time or was constantly juggling it I might feel differently, but I reject the notion that everyone should just put their phone in a case and that be considered the norm.
I personally never used a case, ever on any iPhone, and never broken any.