I remember an interview with the late Bob Woolmer - a journalist asked him what it is like being in Pakistan where there is 'no alcohol'. And his response was 'I drink more alcohol in Pakistan than I do in England'
Those of us who know about Pakistan as a country know that alcohol is widely available to anyone who wants it, Muslim or non-Muslim, though Muslims will have to go 'under the table' to get it. The top hotels have bars and the main cities have off licences etc where non-Muslims can legally buy their beer, whisky, wine etc.
Though, as others have pointed - go to any nightclub in the world and you aren't going to see many people above the age of 35, maybe a handful of people in their early 40s and maybe 1 or 2 in their 50s having a mid-life crisis. Anyway, I digress but the point is that bars and nightclubs is not an issue that is stopping Pakistan getting a top foreign coach !