New Zealand Young Nationals
The Young Nationals, in conjunction with other New Zealand political party youth wings, support the current purchase age for alcohol of 18 years. They argue that the two biggest problems with the current law are the lack of emphasis on individual responsibility, and the ineffective attempts to enforce moderate drinking, and that raising the age, both at off-licences and at bars, will not solve the problem that New Zealand society faces around the issue of binge drinking. At the National Party Conference 2010 the Young Nationals passed a remit, led by 2010 National Policy Chair Edward Greig, for the continuation of a drinking age of 18.
Alcohol in New Zealand
The swill was made permanent in 1919 owing to pressure from the then powerful temperance movement. The new law was supposed to curb drunkenness and crime and to send men home early to encourage family life, however six o'clock closing had the opposite effect. 
Men would finish work at 5 pm and had only one hour to drink as much alcohol (usually beer and from half gallon (2.2 litre) jugs) as possible before closing. This phenomenon created a culture of binge drinking.