Prison is the new rehab for drugs ...?

When most drug users are caught with possession, they are immediately arrested and put in jail. Is this really the right thing to do though? With drawl can be pretty dangerous depending on your state of mind and jail is no place to get actual help. Once your time is up and your back out in the real world, chances are high that your going to start using drugs again because you haven't been treated properly. This is hurting our society because hundreds of people go to jail every day for drugs and when their sentence is up, they start using again. Instead of putting them in jail, they should send them to rehab because going to jail isn't fixing anything. Someone very close to me used to be a drug user. His parents kicked him out and made him live on the streets until he got help. I don't think he ended up in jail but he did finally realize after a few years that he needed to get help. Now that he is properly treated, he has a girlfriend and they are expecting a kid!