I used to smoke weed, and my take on it is; that the drug is overrated. I am doing a lot of good things in my life and weed only fuels unproductivity and bad habits, so i had to drop it. It's still better than alcohol by miles though.
For the people that says that you can smoke weed and still be productive. I know many stoners and most of them are not that productive i tell you. There is a clear correlation between the intake of marijuana and unproductivity. That's common sense. Long-term habitual use of marijuana is linked to lower dopamine levels and stifles the motivation.