KiKi: You are misunderstanding the three C statements -
Those are statements directed at the friend/family member of the addicted loved one. It means, "I did not cause my loved ones addiction, I cannot control my loved one's addiction, and I cannot cure my loved one's addiction."
Many of us are stuck in guilt - that somehow we do have the power to cause someone to want to use drugs/alcohol. Many of us have listened to the addict tell us over and over that we are to blame for their troubles, that it is because of us that they use drugs or alcohol. So that is why the Three C's are referred here so much.
Hope that helps.