Agreed, it is a poorly thought through rule, but let's bear in mind this is a panicked reaction from a small local govt just trying to deal with chaotic situation at the moment. Ultimately it gives the police the power to stop the gatherings which are causing issues and I'm sure families with 2 people who drink will either ignore the regulation or wait a bit before getting pissed.

This is not the Burmese genocide or the new coming of the Khmer Rouge.