If for example, the government decided to raise the drinking age to 21 (as was being discussed in 2007 although hasn't been brought up again recently), how would this work? Would people between the ages of 18-20 have the right to drink revoked until they are 21, or would they adopt a scheme such as waiting for several years before introducint the new law?
The same for the driving age (although the last proposal discussed suggested raising the test age rather than the age to own a provisional licence.
It wouldn't, to put it bluntly. With regard to the drinking age limit, it would just be a waste of time. You reach majority at 18 in the UK, and the Government has no plans to increase the legal drinking age to 21. Many 18 to 21 year olds are at University and a ban would be impossible to enforce. Furthermore it is the under 18's who can't go in to pubs and drink, and therefore hang around street corners with bottles of cider or cans of lager, who cause the most problems and instill the most fear within local communities.
You know what the drinking age in India is? 25! By that time, most people have gone through high school, undergrad and postgrad... Kind of ridiculous, seeing as 25 is when most people actually lessen their drinking and get more involved in work/ family stuff.
I mean, I'm not much of a drinker myself. But I can't believe my country's law regarding this haha!
I don't see the drinking/driving age rising, personally. Although I still think 16 is a little too young to drive (US).