Noooooo, the WORST thing to do is quit high school, and a notsogood decision is to NOT go to college!!
I definitely will have to disagree with Dmoore for the most part. Entrepreneurship can't be talk, because there are personality and mental requirements that depend on the individual as a person, and that person's willingness to go the riskiest route with more uncertainty, opposite the 9-5 route.
However, you need to learn the technical aspects of business. Sure, anyone can buy a book and start up a website. In fact, the Internet has created such a new field of "self-employed" people who use various webpages for income, and marketing.
However, no offense to many, there is a massive difference between Entrepreneur and the typical "e-venturer".
There is SO MUCH to learn, and SO MANY tools that will help you in your character development. College, I have learned, is not about the Degree, it's about the journey, and the growth within college.
Plus, most professors are industry experts with a long resume of accomplishments and a vast social network. It's much different than high school. Depending on the size of your school, you will find urself doing professional work with your academics that is equivalent to the real-world, and you will have your educators and experienced classmates their to help you as both colleague, partner, and friend.
Truly college is the best years of my life, thus far. I would recommend you find the school that fits your needs, and Explore, Get Involved, Study EVERYTHING you want, and be persistent.
I am becoming incredibly successful from the tools I've gain at school, the network I've established through school, and the personal growth and experiences during these times.
I'm working on my 5th business project and am planning on attending continuing education programs in various fields of finance, economics, accounting, etc. etc.
I have a BS in Business, with Concentration in Marketing Managament and minor in Financial Management.
"To walk in the shoes of a successful fellow, you must first walk in your socks to his shoe store.