What's too high? Alcohol is heavily taxed in the nordic countries with a single beer costing 10-20 dollars in a bar. A single long-drink can be 20-40 dollars. There are still plenty of bars and people getting drunk. Yes, there is home brewing but it's not what the young kids do to have fun and get drunk.

You can read about the taxation and the effects of a tax cut in this paper from 2018, https://www.alko.fi/INTERSHOP/static/WFS/Alko-OnlineShop-Sit...