Lol what, what makes you think it was caused by James Bond, not countless other anti smoking initiatives?
When there was a push to regulate smoking in advertising, it cut the original feedback loop which made film/tv characters not use smoking as a sign of being cool. This led to advertising (if it were allowed) to be less effective at portrayal of coolness via smoking.
It's not a simple one-to-one cause and effect.
People stopped smoking in movies at the same time a lot of other smoking related things changed. Similarly smokers likely notice people smoking in movies more than non smokers.
Juul changed the cultural standing of vaping and (for a very brief moment of time) made it "cool" by means of social media celebrity promotion. They were hit with pretty aggressive punishment for this by the US FDA if I'm not mistaken.
https://en.wikipedia.org/wiki/Electronic_cigarette#/media/Fi...
All the exponential curve stuff happened early on the path from 0 to ~10 of million.
The correlation between an exposure and initiating smoking is proved: https://pubmed.ncbi.nlm.nih.gov/27043456/
Instead it was relatively slow taking ~10 years to hit 25 million users and ~20 years to hit 85 million users keeping it niche vs the ~1,100 million smokers.
Kids and even adults pick up cues from games, movies, books. War is like CoD and heroic war movies (why do many 18 year olds go to the army expecting glory and come back with trauma and broken dreams?), sex is like in porn, and gangs are like in GTA. Until they gain practical experience and slowly realize some things are vastly different. Maybe a couple will love “porn sex”. Most others will break a leg having shower sex and reconsider the “teachings”.