Yes if they really want to

Some do

Yeah, depending on the person.

The ONE thing that characters like Ebenezer Scrooge, The Grinch, Darth Vader, Kylo Ren, Piccolo, Vegeta, Knuckles, Shadow, Iroh, Zuko, Mai, Ty Lee, Severus Snape, Shrek, Gru, Megamind, Ralph from Wreck it Ralph and others have in common is that they were ALL villains that ended up redeeming up themselves EVERY SINGLE ONE of these characters is important because they teach us humans that NONE of us are perfect and that ALL of us are FLAWED and they teach us that it is NEVER TOO LATE to be a better person than we were before Yes I know I already answered this question But I wanted to edit it but Ask.fm does NOT let you edit answers so I had to start over

I think it's almost impossible for someone to stay exactly the same their whole lives

yes

yes

i believe most people have the capacity to change, as long as they recognize that they have behavior or thought processes that require change and are willing to put the work in to reverse those behaviors/thoughts.

They can if they choose to

yes