Why is it that most graduates in Nigeria end up getting a job in a field that is not related to what they studied in school?

You see someone who has a Bachelors in Engineering working in a bank as a funds transfer staff, someone who studied Accounting is out there working in an oil firm, someone who studied Anatomy is out there working as a CSR in a hotel, a Political Science graduate is out there seeking employment in multi-national companies, and all that.

Why is it so rampant in Nigeria Please share your story with us.