Or have lower class families been buying plastic to increase the appearance of their quality of life for 6+ generations?
I get that we're going through mega-inflation since covid. Even before that, if you bought whole foods and clothes that aren't plastic (nylon), the ol' paycheck only stretched so far.
I'd really like to pick the brain of a self-aware Boomer and find out how long it's been like this.
By the time I was old enough to know what it meant, they were already calling it an upper middle class and a lower middle class.
So ... probably not for the past 50 years.