I was at an estate sale over the weekend. There was a block of Henckels that had been badly eroded from sharpening. A fairly large chef's knife was mostly gone. That was a bit of a shocker. Others were well beyond their bolsters.
I saw a couple of table top sharpeners that likely did the deed but didn't pay them much mind, because many of them do wear knives away. Not saying the knives were not kept reasonably sharp. And some folks don't care, they will just buy new knives when they wear out. The Henckel's were replaced with some China import knives that try to be fancy but don't seem to be well regarded. Those were gone by the time I arrived.
Another thing about sharpening - knives can feel sharp initially and cut well, but the edge is not durable. Whether due to problems with the edge, or due to loss of temper from overheating while sharpening (or both).