For fun, I went through some old newspapers and really, nothing ever changes. Here's one from 1959:

It even has the theme of "most generations think the younger generation is out of hand, but we're really right this time." So it has always been.

Source: https://chroniclingamerica.loc.gov/lccn/sn96060044/1959-06-29/ed-1/seq-2/#date1=1770&sort=relevance&date2=1963&searchType=advanced&language=&sequence=0&index=5&words=generation+generations&proxdistance=5&rows=20&ortext=&proxtext=&phrasetext=&andtext=This+generation&dateFilterType=yearRange&page=4