I guess not everyone thinks in the same way.

I imagine there are certainly very apt uses for plastic, and can agree with the advantages that you mention. When it comes to food and drink, I don't think plastic has really solved very much IMO. In terms of other areas, I definetly can see the benefits of plastics.

Just as polystyrene and other materials were commonly used as disposable food trays, plastic cutlery etc, I don't think it is necessary.