There is no such thing as an easy photography business. Digital or analog, the basics of photography are the same. You have to learn the basic principles and techniques, you have to learn the basic principles and concepts of art, lighting, light and shadow, retouching (Usually with Photoshop, which is also a large learning curve), and quite a few other things involved.
If this profession/art is what your heart is truly passionate about, go for it. But if you're just looking for an easy job, move on. This isn't it.