Do the police really have to read you your miranda rights?
Yes, it is absolutely required by law. In fact an arrest and any information acquired from it can be tossed out of court if the officer failed to read the miranda rights.
No, but if they don't when you go to court your off the hook, no joke!
yes, if not you go to court and say they didn't give read your right they will let you go
Yes. It is part of your constitutional rights.