This thread is so interesting to me and the reactions it is bringing out- both in myself and in other posters. I'm not at all traditional, and yet, something about this question and the responses makes me bristle.
I don't think anyone is saying their wedding is all about the rings, or that they were looking forward to their wedding day because it meant getting a new piece of jewelry!!
I find it odd to wear a wedding ring before the wedding, but it has little to nothing to do with equating marriage with jewelry. As someone else so eloquently put it, a wedding ring is a symbol- a symbol of being married. It isn't a symbol of about-to-get-married. I don't think it is meant to be a symbol of a couple's wealth or good taste in jewelry, either. Although, of course, there's no denying that gets wrapped up in things, too. LOL
So why wear it before marriage? Seems odd to imply others might be making their wedding day all about the ring or about getting jewelry, but then be unable to restrain oneself from wearing something because it is enjoyable or pretty, or because someone else insists.
I simply cannot wrap my brain around calling a ring a wedding ring, but wearing it before being married. It is then another engagement ring, a commitment ring, a promise ring. Whatever. But it ain't a wedding ring. LOL