I think my citizens are smuggling alcohol into my republic

I believe my citizens are smuggling alcohol, in the frontier town. The republic produce no alcohol or have pubs to serve alcohol (yet, in the image you can see it’s planned to buy one near the beach…), but somehow the overall health is decreased due to alcohol consumption.

Sure, some of them are alcoholic, but i’m sure there are some illegal breweries here and there… (my new canon for this republic)