I think, generally speaking about Nigerians, that young people in the university, as well as those trying to get into university, more often choose the wrong disciplines to major in.
Wrong as in what they are not suited for, both mentally and psychologically. They now spend the rest of their youth trying to correct this mistake, and usually end up adding to it. {Spilling and Splashing as the case maybe lol }
There is also the 'overload' factor. Take for example someone who studied Bachelor of Engineering, Master of Engineering, and MBA as a follow-up. Usually people do this to 'enhance their job prospects'. I wonder if it really does. I know someone who did that, still did ICAN and some computer certifications into the bargain. I'm not sure what good so many diverse qualifications can do to anyone.
Either peer pressure, zero counselling available, family pressure, or desperation to get into school might be responsible for all of this. I think aptitude tests should be administered on students who are wrapping up secondary school. Maybe that way the students can be shown some things about themselves which they would never have known, and might help them with their decisions.
