man I'm so tired of seeing the phrase "has a lot of life left," a hoodie isn't a car where it'll just stop working one day. And I assume the worst that can happen to a sneaker is the sole wearing out. If something actually falls apart then it probably wasn't well constructed in the first place and not due to extended wear.
Things do eventually happen, lining ripped, stitching undone, fabric pilling, leather looking worn as shit, hardware missing, etc. Still useable I guess, but subjective.