I'm sick of "renting" batteries that are permanently installed in devices that would otherwise work for tens of years, but their batteries wear out after only a few years. I'm sick of paying inflated prices for batteries that have bizarre configurations and that go out of production.
I understand there are significant engineering challenges for some things (e.g., earbuds that are basically some electronics wrapped around a lithium cell). But there's no reason a set of headphones couldn't have a replaceable cell (I'm looking at you, Bose). I'm happy to have slightly heavier headphones and slightly thicker laptops and tablets if it increases the device lifetime and reduces e-waste.
Not gonna happen without a mandate, that's for sure. Gotta keep customers on the upgrade treadmill.