This is the main factor that could stop people from making good decisions. Why is that so? People fail in life for two reasons,either because of something they didn't know or something they knew and didn't do. In any of these cases,one thing is true; they did not truly know it in the first place.
Ignorance is at the base of every problem and the problem is compounded by the case of assumed knowledge. Ignorance is not illiteracy at all,a very literate fellow can be very ignorant and many people can be deceived by his knowledge.
Noboby is born with knowledge, we all learn,but the most inportant thing one needs to learn is "how to learn",and that comes by opening your mind. Lack of knowledge can be cured by providing useful information. The real problem with ignorance is the attitude, and only the ignorant fellow can change that.