What percentage of drinkers become alcoholics?

Answer 1

I would say about 1 out of 7 people who drink alcohol become alcoholics.

About five percent of drinkers become alcoholic. However, the proportion differs by ethnicity. For example, few Jews become alcoholic whereas a substantial proportion of Irish do so. This reflects culture and beliefs rather than genetics. For example, Orthodox Jews have a lower rate than do Reform Jews. And as Irish become assimilated into U.S. society, their rate tends to drop.

Answer 2

Zero. It is possible to become addicted rapidly if alcohol is consumed regularly in large quantities, but not that fast.