But most devices used to work a lifetime. My motorcycle was made in 2009 (14 years ago) and is in pristine condition. The previous one was over 25 years old when it got stolen (by someone, presumably, who thought it was worth the risk). Blenders from the 40s still work. Not to mention non-electrical tools like hammers and such, which last for generations.
Parts of my home desktop computer are over 15 years old; the case itself was made in the 1990s.
It's one thing to get newer devices that do new things, and quite another to have to throw away old ones that should still be working fine.
Phones have no moving parts, there's no good reason they should become obsolete.