Every second person I know is a drug or alcohol addict. And yes they will not change until they have suffered enough. I tried to talk them out, it does not work. Only if you stand as an example and do, there is a chance for change. He has his own mind and choice, it is his decision, but surely your brother has a big advantage having you as a brother, when you are giving him your love unconditionaly. Maybe he still will run away, because he will be scared of so much love, but once always is enough and he will return to the path of love either way.

Take this humble advice from a young male who's done the same...