Do you have a reference for that? The World Population Review [1] says that alcoholism rates are similar to or less than the US, Australia, Brazil. And definitely less than many other countries around the world.
These countries often have strict rules about alcohol which reflect this. In some parts you had to buy alcohol from a government store. Then there is usual tactic of taxing it to death. As a result illegal alcohol production is common out in the countryside.
[1] https://worldpopulationreview.com/country-rankings/alcoholis...