I agree that "fake until you make it" is a good strategy for creating change. But it only works if we fake it because we recognize there is something about ourselves we want to change. The Doc was faking it to please Louisa, he wasn't faking it to affect a change in himself. In my opinion, it is really for the wrong reason. I agree with Louisa, you do have to want it in order for it to work.
Absolutely. I think in those very same groups it is key that you can't change for someone else, or under duress, you have to come to the conclusion that it's what YOU want.