I just found this article. It's an engineer and he explains why he doesn't use a screen protector.
http://androidandme.com/2013/12/opinions/why-i-dont-use-screen-protectors-an-engineers-perspective/
lmao ridiculous
DUH. Gorilla Glass and other hardened glass is awesome.
It can be scratched.
The whole point that people forget: sand is literally everywhere. You don't have to live by a beach to pick up sand. I somehow have gotten sand-like particles in my pockets all the time, and I too DO only use my right front pockets for phone and phone only.
I've also accidentally dropped said hardened glass phones and developed pits or scratches on the face. We can't all have super-human ability to hold onto things.
Drop your phone on gravel. Let me know how it fares.
Or even any "pebbled" aggregate concrete type surface. There is a ton of quartz all around us, and quartz WILL scratch any hardened glass on the consumer marker right now.
Whenever I've dropped naked phones before, I swear my phone has actually sought out nearby quartz. Maybe I'm unlucky about either how often I've dropped my phone and/or where it gets dropped, or knocked out of my hands for whatever reason.
In other words: life happens. :\