But we already do govern ourselves. To make obvious rules which are already obvious to us is a moot point; to make new rules which aren't obvious to us is in the interest of another, for if those rules were rules we agreed upon, they would already be obvious. What we're talking about, when it comes to making rules, is curbing the actions of other people, which we already do:
An example of curbing actionsIn this example, there is no rule against scamming; there is, however, still a change in action, for people who become acquainted with scammers are more likely to avoid scams. In this case, we are not stopping scammers by telling them not to scam (ineffective, I would say, since you can't ban a scammer before he is known to be a scammer), but instead stopping scammers by educating people so the scam cannot happen to begin with.
Besides, if government wants to impose more rule upon us, making our own rules won't help; their rules would always supersede ours, they're the ones with the tanks after all.