Developed countries don't all restrict times that you can purchase liquor but generally have tougher rules on who can buy, with many asking to see ID with a purchase if the buyer looks young. Some simply don't care.
It is perhaps not surprising which countries have the most alcoholics.
Hungary
21.2%
Russia
20.9%
Belarus
18.8%
Latvia
15.5%
United States
13.9%
South Korea
13.9%
https://worldpopulationreview.com/country-rankings/alcoholism-by-country