Its not illegal to drink alcohol if you are under 18 here.
Its illegal to sell alcohol to those, who are under 18.
But once you are 18, you can simply do what ever you want to do....
Sit in park and drink your favourit whisky, vodka....
Or enjoy your beer, while you are sitting on the main squer... (yeep even w/o camo

)
But most people prefer some confortable pub or bar
