The Rules of Dating--Are They Really Necessary?

Yesterday I was visiting with a friend and subject of "dating rules" came up. And I thought I would pose these questions and ask for some discussion/comments.

Are there concrete dating rules? 

Should there be? 

Some rules are written and some are unwritten--which are an absolute necessary?

Are dating rules restrictions that are merely concocted to give an individual the feeling or sense that they are in control? 

Or do rules create a false standard of expectation?

Have you been frustrated with dating rules?

Are you grateful for dating rules?

What is the difference between a concrete rule and simple etiquette?

What do you think? I'm interested in hearing your views!