And who knows, maybe you'll make good money for four or five years as a developer, and then decide that you'd rather be an accountant, or lawyer, or do something else professionally - and go to school for that thing. And if you do, you'll be the prime candidate wherever you go - because when you combine the developer skill set with another industry skill set, it is like having cheat-mode enabled.
Let's analyze.
Which dev will be more experienced: 4 years of full time dev work or fresh out of college?
Who will be more financially stable?
Who will have a larger network in the valley?
Who will be more employable?
Who will be earning more exactly four years from now?
Which one will have less debt?
Which one would perhaps even have savings?
4 years of full time dev work is far more valuable career wise than the average 4 years of college.