Driving age should be raised to perhaps 17 to obtain a permit, and at least 18 to receive and be issued a valid license.
The age of consent for coplation varies greatly from region to region, but the average of what I find is usually a span in-between 16-18 years of minimum age that a person can consent to sex. To see a quick tablet overview of age of consent requirements from state to state and around the world, you can scan the list
HERE.
Drinking age in the United States is the highest at 21 years of age. There are no limits on the act of imbibing alcohol in at least half-a-dozen countries well-known countries, including Portugal & China, while most other developed countries hover in-between the range of 16-18 years of age to legally drink.
I'll chime in to say that although I may not always agree with the political stances of green 18-year-olds, it should be their prerogative to become well-enough educated in matters of social agendas proposed by their respective political representatives in order to cast a ballot. I'd say a recommended age of 22 is fair enough, but I'd just as soon leave it where it is.
I say as soon as you are legally proclaimed an adult, you can do any and all of the above to your heart's content.