[danneu]

    > working at Starbucks while waiting for his band to 
    > make it big, and the HN crowd won't relate much to that

Replace "band making it big" with any other dream and replace "working at Starbucks" with any other routine and you've described most of our lives, accompanied by that chilling, familiar fear that it won't work out in the end.

[GuiA]

To an extent, your interpretation is correct.

But it's not really what's meant by that here (and I think you know it :) )– there are some (many?) 20-somethings out there who work as <low maintenance menial job>, because "I can always worry about a career when I'm 30" and "I'm just going to do this for a couple years while I find my thing".

I personally know people like this, and you probably do as well– that's the kind of attitude that was referred to in my original sentence.