Poor craftsmanship is likely the biggest culprit, followed by thermal shocks, putting the pans in the dishwasher, and not following care instructions. I went t

Poor craftsmanship is likely the biggest culprit, followed by thermal shocks, putting the pans in the dishwasher, and not following care instructions. I went through half a dozen non-stick pans over a 5 year period that all had their coatings fail. After having expensive brands with lifetime warranties fail on me due to poor build quality, I swore off of them and went with hard anodized and haven't had an issue since.