I once got a friend of mine on a job because he kept on claiming that 'it would be one of his life's goals to work on a show' with the band in question. When he got there he kept on saying how much he was going to like it. My sidekick turned to him and said "So, you really like these guys?" "Oh yeah" was the excited reply, to which my friend deadpanned, "We'll see about changing that for you then."
True enough, by the end of the day, he was a lot less enamored with the concept.
More to the point, I think Winnie the Pooh correctly stated: When you are a Bear of Very Little Brain, and Think of Things, you find sometimes that a Thing which seemed very Thingish inside you is quite different when it gets out into the open and has other people looking at it.
It should be of little surprise that a lot of people work very hard to get someplace that once they arrive is not at all where they thought they were going.
It should also be of little surprise that many will arrive very ill-prepared for what they are about to encounter. Take the SF job deal. It's hard for people - even normal ones - to find a good job. People tend to hold on to them, competition is Fierce, and lots of people wind up way over their heads when they find out that having a HS degree back home ain't worth the paper its printed on here, or that having that BA/BS ain't quite enough when the people you are going up against have Masters or beyond.
So that much of it rings true.
Hell one of the places I work is about the easiest jobs in rock. It also is the single lowest paying job in the entire international union. But we work there because we like it. And with five of us on a show, you tend to have about 150 years of experience on the deck. And you might look at it and say (and it would be true to some degree) "hey, let the beginners work that gig, it's easy, and the pay is dirt" (less than half of what I make in other venues) but its not going to happen, so some person hoping to break in, ain't going to be doing it there. As we say (there and in a bunch of other places I work) You don't get trained here, you get here trained. So someone starting out ain't got a prayer.
I remember a person who was trying to get on and said, "Oh I know those lights (lighting system) real well." And I'm looking across the stage at the guy who invented those lights. Huge difference.
So lots of people move to the Bay Area for the liberal environment, but find that getting a job is all but impossible. So they wind up on the streets - rent for a studio apartment in a ->-bleeped-<-ty part of town is $1,000 a month - and it goes downhill from there.
So a lot of it rings true. Its not the right solution for a lot of people who take it up. And, particularly with younger people, they may 'know' the risks, but in their thinking, 'it ain't gonna happen to them.'