5 ms·Except "not rotting or corroding in wet conditions" is one of the reasons plastic is so useful.by mason240 11y agoExcept "not rotting or corroding in wet conditions" is one of the reasons plastic is so useful.Retric 11y agoPeople also used to use wooden boats.mason240 11y agoOk? They switched because plastic is a far superior material. I never have to worry about my plastic canoe rotting, weighs half of what a wooden one does, and is more flexible when scraping rock.