Okay since we are giving opinions, this is just mine, so please take it for what it is worth...
As in a lot of relationships one may be a little timid to bring up such topics. I know I was. Pre-marital counceling IMO should be mandatory. If it was, then maybe those who would normally "jump" into marriage would think twice, not always I'm sure, but some.
Whether the counceling is done with your Clergyman, Phsycologist, or Marriage councelor I think, IMO, it would help bring out the issues there might be problems with in the future and give tools to help conquer those issues.
Quite a few years ago, I went to talk with a Phsycologist. I was afraid, for some reason to tell my husband. He and I were talking about some of the couples we knew who were seeing "shrinks" and he told me...."man, everyone is going crazy", well I told the shrink what he said and she told me "it's the crazy ones who don't come for help."
I whole heartedly support counceling, because even those couples who are so "in love", are not going to see eye to eye on everything.
There...that's just my opinion..