In this article, I talk about two different types of careers, depending on the ways you can obtain useful real-world experience.
The first kind is the traditional one, work with experts and professionals and learn from them. Otherwise, you will never be able to get access to real projects or businesses on the field. On the other hand, the second kind offers the possibility to test the market on your own. Build your product, ship it, and sell it. No people in between, no middleman.
To illustrate the first kind, one may think of construction, engineering or architecture, where real experience is only obtained getting involved in real-world projects, things that are going to get built and produced for consumers.
The second category presents fields that did not exist 20 years ago. For instance, apps or websites (where an individual can think, build, and sell his product, working out every single part of the project on his own), self-published books (where there is no need for publishers), or any other resource thought, created, and offered to the public by an individual. I these fields, experience is not needed to get started—nobody needs to give you a job, you can pick yourself.
These jobs also allow you to work for others as a freelance, where no long term contract is needed, and expertise can be completely acquired on your own. Of course, expertise in complex fields can be obtained by oneself, but it is tough, and usually slower.
It is good to have in mind that experience in certain fields comes from learning from others, while some things can be mastered alone. What kind of career are you pursuing?