I mean, isn't this just the internet version of what people have been saying about fashion models? A lot appear in a few photoshoots, maybe go get some degree/certification at a later age, and work in some medical office or something.

Tangential thing for people looking for "I'll be famous on the internet as a job" type of people though. I know a lot of early League of Legends pros are just working normal jobs now cause they realized they can't keep up after age like 25 in the pros, so they say "I'll do streams for a living", but that tapers off after a year or two because if they don't play professionally, the fanbase doesn't sustain. So they just go get a job.