Fear stops a lot of people. Fear of failure, of the unknown, of risk. And it masks itself as procrastination.
That image of the common drunk is a myth. There is a thing called a maintenance drinker which may very well be a mother of four, a welder or a distinguished business person. These people build up a tolerance and manage to still maintain their daily lifestyles while constantly struggling with this disease, because it is a recognized disease by the American Medical Association.
If we ignore international institutions, it will lead only to lawlessness and anarchy.