Of that group, probably 50 played well enough to do a creditable "Eruption" solo, and there were half a dozen guys who could get on stage at an assembly and keep the entire school entertained for 10 minutes.
Lots of those guys, when asked what they planned to do after school would look you in the eye and tell you they were going to be a rock star. Lots of them tried, forgoing college to form bands and live the dream. At the time, there were so many stories of starving bands rising out of the LA club scene to land million dollar contracts that it seemed like all you had to do was show up. It was a lot like reading the tech press today about the Bay Area.
Anybody care to guess how many of the guys from my school actually became rock stars?
So here we are, 20 years later, seeing exactly the same pattern. We hear about the Twitters of the world, getting zillions of dollars for some trivial idea, and figure we can do that too. And just like the kid from my youth with the Judas Priest t-shirt, we ignore the overwhelming amount of evidence we see every day that there's pretty much zero chance of that happening.
Here's an idea for a reality check. Do a quick search for "Ask HN: Rate my startup" here. Count(*), then Count(millionaires). That's what you're up against.
If I were in school, I'd stick it out just to hedge my bet.