Just in short, as we said, it's about law. In my opinion, plain English is used; however, what makes it more complex is when you get one of those words that mean so many things.
I will give you a very simple example. A person can say, “Which status am I?”, or the person doesn't know where they stand because they only know about PR or temporary, and then you say, “You're on implicit status”, and they ask, “What is all this about?”
How can you make this simple?