(Only ended up replacing that phone because it started just not picking up calls and texts for days at a time)
Beyond dropping, as far as I can tell, there are two other common causes of screen breakage. One, sitting on it (a lot of people carry their phones in their back pockets, which is something I cannot understand; beyond accidents, this makes them vulnerable to pickpocketing). Two, women sometimes crush their phones in their purses (especially when they are in hard covers that act as levers when an item gets between it and the cover).
Screens also get more shatter resistant all the time, but at the same time the industry seems to constantly find new phone geometries that look very prone to fall damage, so that probably balances out.
I've endured zero cracked screens. Ever. A couple of my kids are old enough to have had smartphones for a couple of years now (kids these days) -- they've had zero cracked screens as well.
This is one of those posts that tend to raise people's ire, but I'm just pointing out that a lot of us manage to never have cracked screens. It isn't just a normal that we all tolerate. And yes, I've always used a case -- I have a case in hand before I even take the phone out of the box. It seems insane to not have a case. Maybe when phones are unbreakable I can enjoy the sleek design, but until then it's a Spigen 100% of the time.
I do agree that failure to use a case is insane for a device that's as expensive as a smartphone. But, I see lots of people will to risk a $100+ screen over buying/installing a $30 case. My son does this. He probably breaks one screen/year. Whatever, he's 25 and it's his money.
I don’t see many cracked screens in the US anymore, but I see them all the time in Vietnam.
Unless you're after fashion accessories. Cracked screens are no go for fashion accessories. Can't let other people think you're too poor to buy an un-cracked phone.
Having a crack in the display is an enormous functional detriment on the device. Holding it as a fashion element is absolutely ludicrous.