I live in Turkey, probably the most heavily and forcefully secularized muslim country in the world (Ataturk killed half a million population for his secular reforms according to some sources, Islamic alphabet got abolished, western dress code literally became law and religious clothing got prohibited, religion schools closed, religious scholars executed and prosecuted and Adhan was banned for 18 years).

It's free to drink here, but drugs are banned. Only a very small minority drinks alcohol in my region, I have no relatives I know of that ever drank. Drugs/weed/marijuana are horrible things no one ever wants in my entire social circle, I don't think I have ever seen a user of such substances in my entire life IRL. Western and some coastal cities drink more and there's more drug activity too (and they're less religious too).