The root cause is the traditional old style vs substance. This fits your observation that its harder to use, both to read and to keyboard. But its not marketed / designed as a tool to do anything, its a fashion accessory, so its irrelevant if its usable. What matters is if its shiny. That led you astray into the whole ageism anti-hipster thing. I also laugh at hipster kids, but the problem in this individual scenario has nothing to do with age.
Imagine if a hardware store released the iHammer and it was just like a conventional hammer, but cost much more so you could show off how rich you must be, and was painted blue, they made the hammer head pointy to be edgy and cool, had lace tied around the handle, and shipped it in a really cool origami clear plastic box. Anyone in search of a productive carpenters tool is going to be horribly disappointed and make fun of the iHammer, but thats not the point, the correct reason to buy a iHammer is to show off to their peers.
iDevices are no longer useful. That's OK. They're supposed to be fashion accessories, not useful devices.