We don't all need to be lawyers to understand the basics of our laws. Knowledge of the existence of the law is assumed for all citizens. Ignorance of the law has never been a valid excuse when the law is broken.
(Yes, the US does have some new problems with private laws being passed, where the public is not allowed to know the law itself - and this opens up huge scary things. But that is not what is being discussed here and I don't believe is relevant.)
(Yes, the US does have some new problems with private laws being passed, where the public is not allowed to know the law itself - and this opens up huge scary things. But that is not what is being discussed here and I don't believe is relevant.)