Answer:
This can be answered by a very simple statement, plastic is an easy product to manipulate.
Step-by-step explanation:
When using plastic on products that were usually made out of metal can be a bad thing by the public's view because plastic is a very easy thing to manipulate, and once you use it, it's very easy to discard it.
Besides that, the amount of space that a plastic product will occupy is pretty much less than the metal ones, and this can be a thing that the public may view as a negative point too.
The last one is, plastic is easier to produce, yes, the global warming will be a problem with the usage of plastic, but the majority of the people won't think of this as a problem.