This is outsourcing a problem solution to the user. And the covers are a mere workaround.
* Shall not be needed for a well designed device.
* Covers are ugly.
* Make devices even bigger than they are already.
* Don’t protect against high forces.
Don’t get me wrong. A cover reduces the risks. My phone is alive despite I don’t use one but that is luck (and some care).
Manufacturers get away with weird design decisions.
* Hard (fragile) screens. Somewhat okay?
* Camera lenses extending out of device body.
* Camera bump extending out of device body.
* Glued sealant instead of replaceable sealing rubber (Apple *does not* guarantee that the iPhone survives water - the glued sealant ages).
* Glas backside to make it more fragile. Which improves Qi-Charging needed for metal bodies. Which wouldn’t be needed with polymers bodies.
And then there is the Nokia 5110. Surfing everything except water. And the next gen? Nokia built the antenna inside because they improved it. The didn’t sold „more is better“. Nokia improved the device itself :)
Of course everyone is using phone cases - without them, hardly any smartphone would last a month without needing a screen replacement.
(It was better a decade ago, when smartphones were still thick and made of hard plastic. Now that they're all thin and metal, they're too slippery to handle safely.)
I'm not using a phone case, never have. You can have a smartphone for many years if you don't mind micro-scratches. Just don't drop it too often from too high up.
