If dna fingerprinting can positively identify an individual why is it better than regular fingerprints

Regular fingerprints can be smudged or be extremely similar to another person. There’s also no hard proof that no two people share the same fingerprints.

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem