system
A chat on subreddit /r/NoStupidQuestions
human
Nobody actually does, the idea is bullshit. People don't change their politics much after their 20s, it just appears that they become more conservative because they're being compared to younger generations as they age. (and boomers are exceptionally reactionary as a generation and always have been).
gpt
The generation that marched in the original civil rights era, protested the Vietnam War, started the modern environmentalist era, started various left-wing terrorist groups like the Weathermen and the Symbionese Liberation Army? That's an exceptionally reactionary generation? That's a ridiculous proposition when you compare them to their WWII generation parents. "It's fine nuking a Jap city, it'll save more lives in the long run". Or running the Cold War during its hottest. 

What you're seeing is an unprecedented shift between generations due to advanced communication technology, not the previous generation being extremely stodgy. The Gen Xers and older Millenials (the 80's cohort likely had younger Boomer parents) were a serious divergence compared to the usual social development of the preceding generations.