[dangarbri3]

NFTs are digital, not physical. So you need to make sure you can associate the NFT with the product. An NFC tag isn't enough, because like others mentioned, you can move the tag to a different bag so it doesn't actually prove authenticity.

But NFTs are more collectibles, so arguably you could sell the bag WITH an NFT as a bonus (not as proof of authenticity) and I think people into NFTs would like it.

Or make sure the NFT metadata has something to associate it to the physical product so you can prove that it hasn't been tampered with.