“freedom”?
Its a joke among married men. Its the idea that if we had not gotten tied down, we could have…
But like I said, its a joke. I’m not sure if women joke this way as well (come to think of it, they probably don’t) but I assure you, ring or not, the way you act (and react) in public should tell people loud and clear if you are married or not.
Much the way your actions should tell people if you a frum jew or not