I am proof that anyone, and I mean anyone, can change.
My Dad taught me change is easy to understand but hard to do. People want to stay in their comfort zones. Change requires one to step out of their comfort zone and to do something that they never would have done.
But Mos Def taught me that anyone can change, even Big Barry White. I did not want to change. I was miserable on the inside and it showed on the outside.