What concept, which became normalized in consumer culture, accelerated the demand for single-use packaging like the PET bottle in the 1970s?

Answer

The concept of single-use packaging

The PET bottle's dominance in the 1970s coincided with a rapid acceleration of consumer culture where the idea of single-use packaging was increasingly accepted.

What concept, which became normalized in consumer culture, accelerated the demand for single-use packaging like the PET bottle in the 1970s?
inventionMaterialplasticpetbottle