Why do weed whackers/weed eaters often use plastic string and not metal wire?

Question

Why do weed whackers/weed eaters often use plastic string and not metal wire?

In: Other

Answer 1

Ever hit your foot with a weed whacker? That plastic string hurts like hell and leaves a nasty mark on your foot… if it was metal wire, you wouldn’t have to worry about the mark, the foot would be gone.