I think it depends.
If you're both reasonably young, and/or it's a first marriage, and neither party has personal, political, or religious objections towards the institution of marriage, then yes.
If you're older and it's not your first rodeo tbe then different factors come into play.
I'm one of the first of my friends to get married and have babies, and I always caution them about the sort of man who will string a woman along on the never-never. When I was younger I used to have all sorts of beliefs about how marriage was antiquated and antifeminist, but now I'm not quite sure what sort of shifting sands my objections were founded upon. Making a legal commitment to stay together and share assets seems like as good a framework for starting a family as any