Coming of age in the WW

[justcarol67]

No: HPFGUIDX 86893

As an American, I find coming of age at seventeen a strange
phenomenon. In Arizona, kids can drive at sixteen and vote at eighteen
but can't legally drink alcoholic beverages until twenty-one. I don't
know what the age for acquiring a business license is, but it
certainly isn't seventeen.

So my question is, first, what does coming of age constitute in
England and how does this match up with the WW?

I know that the Weasley twins can now legally apparate and they no
longer need to worry (if they ever did) about getting caught
practicing "underage magic." Apparently they and their friend Lee
Jordan can now own a business as well. Granted, the twins will turn
eighteen in April of the year the next book opens, but to me that
still seems very young for such a responsibility (especially given the
mischievous personalities of Fred and George).

Anyone have any clear idea of what coming of age in the WW actually
means and whether some privileges may still be withheld? (I'm not
talking about sex here, since that topic is unlikely to surface in th
HP books.) Are the twins full-fledged adults in OoP? Can they marry?
Can they vote, assuming that the WW has some sort of elected
government? Can they legally drink anything stronger than butterbeer?
(Is there really such a thing as butterbeer?)

Carol, who does not consider the Weasley twins to be adults in any
way, shape, or form