I wonder if it isn’t actually a switch to glass etc, but instead less home cooking and less leftovers. Many people get delivery or eat out several times a week, much more than prior generations.
We are heavy user of plastic storage; glass is too bulky and the lids are terrible unless you update. We get nicer brands like Snapware when we can; it’s generally PP plastic which is pretty inert, and we never microwave the plastics, just use a glass bowl or plate. But we are heavy home cookers.
The takeout boxes are shit though so you are better off repackaging. A lot of people just use glass now. You can store curry in it without permanently staining your plastic tupperware with turmeric.
We are heavy user of plastic storage; glass is too bulky and the lids are terrible unless you update. We get nicer brands like Snapware when we can; it’s generally PP plastic which is pretty inert, and we never microwave the plastics, just use a glass bowl or plate. But we are heavy home cookers.