How do you bring about cultural change?
Not sure, but, making alcohol cheaper and more accessible seems to work in some countries. More so when their culture is already set that way. So not necessarily the first step on the road to culture change but maybe the ultimate goal.
Rationing is simply unworkable even if it was a good idea, which in my opinion it is not. It would be too much of a nanny state, plus alcohol affects different people in different ways so a good limit for you may not be a good limit for me.
Like I said earlier, there are existing laws to deal with those that cause trouble, they just need to be used.
Ref, licensing and likening it to cars/drivers, let's not bring cars/driving etc into a thread about the cost of alcohol, we've managed to avoid that so far, let's keep it that way.