Getting the young'ns worked up is easy, it's like shooting fish in a barrel.
It just never makes them vote.
Youth voting will not raise more then a statistically meaningless percentage point or two in 2020.
The Democrats have got to stop pinning their hopes on some youth voter uprising that is never going to happen.
We made it through the end of the sixties, Vietnam, an entire Constitutional Amendment about voting age, Watergate, and NONE OF THAT made 24 and younger voters peak above 35%.
Bernie and Trump aren't going to magically be different.
2020 will be won or lost with the same, basic with only minor variation, voter demographic as 2016.