Oh well, I can tell you once again about the law here in Germany:
You can drink whenever you want as long as your parents allow it. This doesn´t apply in the public.
14-15 - soft stuff (beer, wine etc, i.e. no liquors) as long as you´re accompanied by a parent.
16-17 - soft stuff even unaccompanied, still no hard stuff
18+ - whatever you want, whenever you want, with whoever you want.