Right so, jobs that the mass majority of people, young and old, will never have.
Not everyone is lucky enough to get rich uploading cat videos to youtube, or time bubbles well and buy sports franchises.
The other thing about old people, and most relevant to this situation, is that they are the ones that bother to vote.
60% of the paid agitators that got arrested at the Portland protests did not vote.
Sure voter turnout hurt Hillary everywhere but California, where it doesn't make any difference, but she failed in the rust belt, and that is what cost her the Presidency.
Aside from youtube, the rest are standard jobs that the average person will have. (ie every big, and even many small businesses, will have a need for data scientists/analysts)