USB is standardised. File structures are also standardized (if you ignore different storage formats like ntfs, FAT32, etc). Everything that USB drives have to deal with is solved and standardized.
Meanwhile, network specs are continually changing due to security concerns. If you have 2 devices connected, you need to have a secure way for those 2 devices to verify that they’re the correct devices. That’s not as big of a concern for USB drives, because if a bad actor has physical access to a computer you generally have bigger problems to deal with.
Plus, hardware vendors like murkying the waters by pushing for their internal implementations when possible, preventing standardization across the entire industry
I think the main reason is priorities.
USB is standardised. File structures are also standardized (if you ignore different storage formats like ntfs, FAT32, etc). Everything that USB drives have to deal with is solved and standardized.
Meanwhile, network specs are continually changing due to security concerns. If you have 2 devices connected, you need to have a secure way for those 2 devices to verify that they’re the correct devices. That’s not as big of a concern for USB drives, because if a bad actor has physical access to a computer you generally have bigger problems to deal with.
Plus, hardware vendors like murkying the waters by pushing for their internal implementations when possible, preventing standardization across the entire industry