People familiar with the matter (vague enough?) tell me that most Moroccan adults drink wine, but secretly. They tend to drink shitty wine, according to my sources, so that all the good wine is consumed by foreign tourists. Fortunately, for the Moroccan wine industry, that group numbers millions.
Moroccans seem to maintain a weird relationship to wine and alcohol. It's forbidden by Islam, and so even those who imbibe do so with some shame and guilt.
I'm not especially religious, but I do prefer the American/French religion as expressed by Benjamin Franklin, who commented in French to his French friend Andre Morellet: "Behold the rain which descends from heaven upon our vineyards, and which incorporates itself with the grapes to be changed into wine; a constant proof that God loves us, and loves to see us happy."