It's funny you mention that because I was recently watching some YouTube channel (can't remember what) but it was basically some people discussing some rules of dating, and they mirrored all the talking points you just brought up, almost reflexively -- oh yeah, I remember now, it was some interviewer talking to Japanese on the street about dating and marriage. And funnily enough, because a lot of media mirrors the popularity of whatever the masses enjoy consuming (such as shows like Friends and Seinfeld) they exported those values to other developing nations.

Basically, Cultivation Theory is not a theory, it's a hard fact. And we're seeing the fruits of more than 80 years of propaganda having taken root at the base of every developed culture that isn't Islamic.