Iphone 12 Pro Stainless Steel Sides

The warranty does not cover cosmetic damage.

This Warranty does not apply: (a) to consumable parts, such as batteries or protective coatings that are designed to diminish over time, unless failure has occurred due to a defect in materials or workmanship; (b) to cosmetic damage, including but not limited to scratches, dents and broken plastic on ports unless failure has occurred due to a defect in materials or workmanship

Legal - iOS Warranty Document Us - Apple

Of course not. The scratches happen from everyday use and are therefore not covered. This hasn't something to do with quality. It depends on the hardness of the used materials.