system
A chat on subreddit /r/NoStupidQuestions
human
You're both right. In some instances their views haven't changed society has. Trans acceptance come to mind, a lot of people decided to draw a line at gay marriage and say that's as far as they'd go. But 30 years prior that was kinda cutting edge progressivism. 

But with things like taxes and policing I think certain people change their minds as they get older and change from an exploratory mindset to a protective one. 

Obviously this is a giant generalization etc etc.
gpt
&gt; But 30 years prior that was kinda cutting edge progressivism

Try 15 years ago.  Public opinion on acceptance of gay marriage turned around extremely quickly.