First, there is the general divide in the Democratic Party. The millennials and Gen X-ers seem to like Bernie Sanders. Baby boomers like Joe Biden. Read Eric Levitz’s piece at New York Magazine.
If all this reporting is correct, younger Americans love socialism, the environment, socialized medicine, and free college, but they are also selfish and more than willing to ignore the advice of older Americans who have scientific expertise.
It must be more complicated than this, but as a college professor of a certain age who spends a lot of time with young people, I find this discussion to be very interesting.
ADDENDUM: I just thought of another generational divide. Older and younger evangelicals on the Trump presidency.