How are those rules decided upon or enforced?
There is only one rule to live by in an anarchist society.
Variations of the NAP warrant violence in self-defense against those that use violence iLol. Not if you know anything about human to purposefully cause harm.
Based on human history, yes, society and rules do mean you'll have government.
Governance is a natural consequence of communication.
The established government is the unnatural result of appointing rulers. The established government is the state. The state is evil.
Again I'll ask, where/when has humanity lived in large numbers in relatively close proximity without some form of government?
Even if there have been societies with no form of government, do you think that is practical at all in the modern world?
I can give you a couple of modern societies that have adhered heavily to anarchist principals, and were virtually stateless (there is some debate with the EZLN)
Many communities and societies existed in these territories that were not chaotic and often economically prosperous.
The RIAU and CNT were destroyed by
outside force. The only matter in question is how you go about winning the war of independence, and stopping statist entities from stepping on the free society afterwards