Personally, I think where you attend school plays some kind of role in whether or not you graduate. Some people choose their schools for the wrong reasons instead of trying to look at which environment best suites their personality. My brother and sister attended HBCUs, but they and my parents knew a HBCU was not for me so I was steered away early on. The college I graduated from was a perfect fit for me. I loved every minute of the experience.
Just my .08!
