> This is not necessarily a good thing and laws can change without requiring them to be broken.

That's kind of the problem, right? Suppose you have a system that actually allows perfect enforcement and then the government passes a law against some religious practice. Espousing atheism is banned, or Islam, or Christianity, depending on who controls the government this time; take your pick. If anybody who does it is instantly brought up on charges with severe penalties then nobody does it. But that's bad. That's the problem. You need to sustain enough friction to prevent things like that from being possible because enforcing laws like that is worse than anything that could come out of making ordinary law enforcement require more resources.