Not everyone just quits "no problem". Rehabs are full of people trying to quit right this second.
Never knew anyone who went to rehab because of snorting cocaine, and all of my musician friends did it. About 30 years ago I had a bad patch where I was freebasing and quit that with no problem at all too. Guess some people are different.
High risk of addiction
Animal laboratory studies have demonstrated how addictive cocaine can be. Animals will work much more persistently for a cocaine bar than any other drug, even opiates. Addicted humans eventually prefer taking cocaine to any other activity - their lifestyles may alter completely as the addiction takes hold more firmly. There have been cases of mothers selling their child, professionals spending thousands of dollars with binges costing from $20,000 to $50,000. Some may lose their jobs, families, become bankrupt, and even die.
What Is Cocaine? How Addictive Is Cocaine?
All rehab treatment centers will treat cocaine addiction. Charlie Sheen went to Sunset Malibu Rehab center.