The minimum age to purchase and consume alcohol in Iceland is 20 years of age.
The consumption of alchol by persons over 18 is generally accepted.
It is interesting to note that being a minor and in posession of alchol is not an offence, it is only an offence to supply alcohol to a minor. The alchol […]

The minimum age to consume and purchase alchol in Japan is 20.
However it is interesting to note that alchol can be purchased from some vending machines and the laws are rarely enforced.

It is important to note that Switzerland drinking age laws can vary between Cantons (State / County).
In general there is no minimum age to consume alcohol.
The minimum age to purchase beer and wine varies between areas and is 14 - 16 years of age, the minimum age to puchase spirits is 18 years of age.

The minimum legal age to purchase or consume alcohol in Turkey is 18 years old.

The minimum age to purchase or consume alcohol is 18 for alcohol upto 22% ABV and 20 years of age for alcohol over 22% ABV.
Its also interesting to note that beer, cider and Smirnoff Ice can be bought in most general stores, however all alcoholic drinks above 4.7% must be bought at ‘The Wine Monopoly’

The legal age to drink and purchase Alcohol in Greece is 16.
There is virtually no enforcement of the drinking laws in Greece.

The minimum legal drinking and purchasing age in Belgium is 16.
However there are no restrictions on drinking in private with a parent or guardian present.
There are no age restrictions relating to the purchasing or beer or wine in shops at all, and virtually no enforcement on any of the drinking laws throughout the country.

There are no age restrictions on the consumption of alcohol in Poland.
To purchase alchol in Poland you must be at least 18 years of age.

The legal minimum age to drink and purchase alcohol in Argentina is 18 years of age.

The legal drinking age in Austria is 16 (18 for hard liquor).
There are however some notable exceptions:
From the age of 14 minors can consume alcohol that is provided by their parents.
In Vienna, Lower Austria and Burgenland the legal age for all types of alchol is 16. (Including liquor)