One of the biggest advantages of plastic is convenience - it can be moulded into anything easily and would probably be the cheapest available.
But this comes at a cost - the environment.
Unlike other materials, plastic does not disintegrate or decompose on its own and will lie round in nature for centuries, polluting it.
Though there is a growing awareness about the harm plastic can do to our environment, many people are forced to still use them due to the lack of awareness about more eco-friendly alternatives.