It's not as black and white as that. There's also evidence to prove the opposite. See: https://economix.blogs.nytimes.com/2012/02/15/getting-more-liberal-with-a

It's not as black and white as that. There's also evidence to prove the opposite. See: https://economix.blogs.nytimes.com/2012/02/15/getting-more-liberal-with-age/ https://economix.blogs.nytimes.com/2012/02/15/getting-more-l... for instance. >The authors found that a given age cohort’s attitudes changed over time — more often later in life — and that “the direction of change is most often toward increased tolerance rather than increased conservatism.”