Fair. Say you move to SF and spend 4 years. I'm pretty sure you'll meet more and probably experience a lot more things there than in college. Parties and stuff? Ah, that's great, I'm not worried about that.
As glorious as the SF scene (more specifically the Palo Alto crowd) is, beneath the surface they put more weight into your foundation than your skills ATM. And put this concept to the test, when you get a 5 day vacation - go out there. Meet as many people as you can, and ask the "will you hire me now/why not" questions that your alternative plan would have you ask in 10 months anyway.
Even in the land of SV-coders, people with degrees get paid a lot more than simple HS graduates. Having that degree opens doors, having mad skills gets short-term consultant work. You won't/can't/shouldn't believe that until you experience, so go test this "you'll meet more and probably experience a lot more things there than in college" theory. I'll happily provide 4-examples to the contrary to every 1 you find.