Why our body succumbs to little scars

There is a reasonable question to be asked after reading The theory of little scars: why didn’t nature make the human body powerful enough to beat these scars? After all, most people die due to their organisms deteriorating.

Well, nature isn’t perfect. Our species was given intelligence, but not immunity to scars. Hydras were given immunity to scars, but not an anus.

The vitriolic scars annihilating our species must be counteracted.