And even religious scholars say that this is foolish way of "Expressing anger". There are much more constructive ways that disrupting people's lives. You have to understand the majority want to lieve normal lives and just go about their work but a few of these teenagers can make life difficult in the commercial areas. Hence the local Kashmir leaders including pro-pakistani ones like Geelani have opposed this. Because most importantly, this is against the Sunnah of the prophet.
About Alcohol consumption, it doesn't matter what laws are passed or who is punished, this should come from inside. Now Pakistan I believe officially does not serve Alcohol but it is still available there. Similarly there is a total ban of Alcohol in Gujarat but still people get around it.
If the people are not encouraged to by themselves stay from Alcohol then no amount of laws will stop it. So first of all its the people themselves who should stop it, then naturally the governing body will follow.
And that is how keeping in line with people's wishes the J&K govt. decided not to issue new liquor licenses,maybe this is what you were referring too.
The Telegraph - Calcutta (Kolkata) | Nation | Omar whip on liquor licence