Flappers caused WWII??? Thats a stretch. No, the very onerous armistice terms forced on Germany after WWI are the primary cause of WWII. The Germans were resentful, and, being Germans, didnt stay down for long.
Even now, after being decimated during WWII and split apart for 45 years afterwards, whos running Europe? The Germans. (but I digress)
Not the ones in the US, but the ones in europe, thing cabaret in Germany which was inspired by the flapper “culture”...
I know. If only German youth had been attracted to healthy outdoor activities