So most countries legalised alcohol but not all countries allowed drinking of alcohol, so I quote you wrong that some countries restrict drinking of alcohol, but it's limited and that's why many people doesn't know that in some countries it's only the foreigners that's allowed to drink alcohol
Btw, example with alcohol legalization, restriction and ban are great examples that all those methods dont work as a solution for addiction. There are countries where alcohol is forbidden, yet people still find where to buy it. Selling alcohol after 8 or 10 in the evening is forbidden, yet people still manage to buy it or drink from supplies.
Anyway, even though alcohol drinkers are more than gamblers, I find gambling more dangerous because its harder to spot addicted gambler and more harder to convince him to treatment. I also think that treatment from gambling is a much longer process.