Because I like my hearing and since I'de like to keep it I were Peltore Tactical 6-s' while hunting. Took a big gobbler this spring season with them and you could not only hear with them, you could hear better then normal. For the range I just use these muffs with a set of foamies.

Also no the tree's don't "absorb" enough sound to make a gun shot safe on ears firing unprotected.