If you are going for university course, it is structured and predefined, it has some direction. Here you are learning the things which are written by the experts in the books also side by side you can learn by your own experiences, while in the case of self made you have to set your own path and direction. May be sometime you achieve your goal or some time you got wrong direction, because of the lack of the tips provided by experts which are available in the books and university courses.

Self made people are very sure of their objectives. This is the main phase in a self made persons life. Maybe some Hits and Misses are countered. It' nothing for a self made person. Because , he had already envisaged these obstacles before hand. It's a hard way no doubt. But success achieved this way stands head and shoulders above all.

University degree is a must these days. However there will always be exceptions of self made persons. Not having a degree is too risky to take.

Yes. University education is necessary. But the individual should not stop just with his University degree. One should direct all his endeavors to expand and broaden his knowledge base.And this is a must.

There are numerous examples around us that some people go on high levels, from ground to top without any degree.

Yes. Degrees are not the measure of one's knowledge. It's the ability  and enthusiasm to enter the new avenues and to learn counts.

Degree is a documentary proof that you have passed different academic tests and have become eligible to face the practical life. Education fills our brain with information, but not knowledge. Knowledge is gained only through experience and it begins with the beginning of our career or profession. Though degree is not the yardstick for success, fundamental education is essential because it is the strong base on which we build up our life utilizing your inherent talents, with confidence and determination. 

Even if degree is  necessary from a university, further expansion of one's knowledge base is highly essential.. Curriculum has a limitation but not Knowledge. It is vast.

University trained students are very rarely egoistic about their knowledge but lot many self made persons have a strong streak  of egoism esp if they are successful. They constantly keep reminding everyone about it. 

Egoism in any case Is a hindrance to the development . humility alone helps. If some self made person reveals his achievents , it's to elucidate the necessity and importance of earning the knowledge.