Our last cruise, I was gold and my parents were silver. We were together and they were more than happy to allow all of us in the reception. I loved it! Besides the free alcohol, we spoke with the CD about the ship's horns and how to hear all of them at once. He said he would look into it, as no one had actually asked about it on the Fantasy (we sailed not long after the inaugural sailing).
The next day I got a note from him saying that before we debark for CC, the captain will play ALL THE HORNS! All because I asked! He then announced it during all shows the night before and called my room personally to remind me to be ready for it!
Anywho... They didn't have a problem allowing my parents (now gold) in. My fiancé has never been on a cruise, so he isn't even silver. I plan on taking him to the reception on our honeymoon.