Young voters outnumber older voters, but this is mutually exclusive from an aging populace and a declining birth rate. You can chalk it up to population momentum and previously higher levels of immigration. It does mean Millennials will hold on to their electorate influence longer though.
https://www.pewresearch.org/fact-tank/2020/04/28/millennials... (Millennials overtake Baby Boomers as America’s largest generation)
Young voters outnumber older voters, but this is mutually exclusive from an aging populace and a declining birth rate. You can chalk it up to population momentum and previously higher levels of immigration. It does mean Millennials will hold on to their electorate influence longer though.