Hi,
Compared to tobacco and alcohol, cannabis is not addictive. Quiting it had no side effect. But I will not recommended it. Yes it is not addictive, but it degrade your consciousness. Tobacco is highly addictive but muslims on the old day allowed it because it doesnot causing your consciousness to be degraded. And talked about morphine, muslims on the old day also used it for medical purposes since it was first found in egypt, but they are not allowing it for recreation since it can degrade your consciousness.
The main problem on a substance is more to the effect which causing it to generate hatred.