Dropping out of college is really serious, because after dropping out of college, you will have no academic qualifications, which is equivalent to studying in your high school for nothing. You have no education, so you can only go out to work as a coolie, and there is no technical way for you to do it. There are also people at the bottom and top, who can't get in without academic qualifications, and dropping out of college will leave a very bad mark on the file. Even if the employer uses you and sees that you are a college dropout, he doesn't necessarily need you, which is really serious.