There's a podcast by Jason Feifer (was called Pessimists Archive) where the repeated theme across many episodes is the recurring fallacy of the "good ole days": https://www.jasonfeifer.com/build-for-tomorrow/
E.g. you ask today's generation and they say the "good old days" was 1991; but if you ask those in 1991 what the good old days were, they wouldn't say "right now!" ... they'd say 1970s. And if you ask those in 1970s... they'd say... (you get the point).
So the conclusion is either...
- the true good old days after connecting the survey across centuries was actually the prehistoric cave man days of hunting & gathering
... or ...
- every generation repeats the rose-colored glasses narrative because we bias the past with positive memories and the bias the present with negative current events