Consequently, each State handles its issues with the laws that pertain to its jurisdiction, except monetary issues, such as the printing of money. Other examples of decentralized governments include the governments of Australia, Canada, Germany, and India.
As no one recalled about decentralized government examples, seems it needs a reminder.
In some sense laws and rules can be considered as best working practices, sure it constantly evolving system and many of laws may be far from being good or at mature state. But other rules are. Development of laws takes time, development of procedures, testing all that take time and effort.
Or let's look at software licenses GPL, MIT or creative work CC BY, etc. Once you need one, you will probably stick to some of those, instead of reinventing a wheel. Including for reasons they are recognized/familiar to other people and have some support.
TOS's (terms of service) are usually custom made and those local governors force you to read meaningless walls of text which basically say one thing - we owe you nothing and you owe as much as possible. You agree without reading because it is the only way to access the service, and you expect that if they will oppress you as a user class, the user class can fight back no matter the content of that TOS. There are positive and less successful examples of that so as slavery societies of users(looking at you - windows apple). People of the right to repair act they fight apple madness for years now, and they grow in their strength.
Idealistic anarchy guys way have wet dreams of not having any rules or anything, but pragmatic anarchy guys know that humans need some coherence to be able to combine their efforts to make things(including good ones) happen, which are not possible for a disorganized number of people.
Combination of collective effort, our ability to do so - that actually is what allowed our ancestors to take a dominating position in the animal world. Some animals can do similar things, and thus being more successful in surviving, but we have no limits in the cooperation efforts, no limits by a number of participants, because we invent swarm rules, in some cases, some call them law systems and such.
Our physical ability to cooperate, as individuals, is limited by and proportional to so-called Dunbar's number but with rule systems, we easily overcome such limitations and it has a great effect on our abilities.
An example of that is standardization in production, measuring systems, and units. Which by itself is a system of rules and practices. Adhering to with takes effort, time to learn, and such but it is beneficial to stick to some - for plenty of reasons, including because those rules make sense. There are all kinds of industrial standards.
So any type of government - centralized, decentralized, private, swarm, hive mind, whatever - in the first place it is a system which allows combining individual efforts in a mighty force, way above just simple sum of those individual forces for purpose of individuals to ripe fruits of such large scale cooperation - fruits vary from just survivial as species to our day's technologies.
So it those benefits which join us, which are attractive and which are the reason for different types of management to exist.
Taxation(is theft), enforcing rules, etc - are not what makes governance happen. The benefits are, but the rest is just a payload the ship carries. Sure payload exists for different reasons, big topic, but they are secondary things.
answering your q
It is just not necessarily what you imagine, and does not necessarily work in a way you imagine. But that is a different q. If nothing else, at least look at how The Internet was built, also search for RFC. Take look at how DNS works and why it is possible to sell domain names. I mean look around.
ps btw - language orthography grammar also is a form of government - and if you ask me it is quite oppressive, lol.