What I think we fear is rapid pronounced and uncontrollable changes to ourselves and because of this we have a form of personality inertia - something that resists rapid change.
I used to love to go to the movies - I'd see two in a row. A few times I even snuck into the second movie after it started... now that I think about it that's kind of like shoplifting! Needless to say I still love going to the movies but I don't sneak in anymore.