New South Wales has a solution for this. Limit the alcohol allowance of individuals under lockdown:

https://www.news.com.au/national/nsw-act/news/nsw-health-lim...

I wish this was a joke, or fake news. But no, once they control where you can go, when you can go there, etc, it's not a big jump for them to demand control over what you put in your body. It's for your own safety, after all.