I have been in discussions where this question has come up hundreds if not thousands of times in my life. I would say that rather normal for anything as everyday as people getting married. And for many people, it’s not a “silly gaffe”. It’s a great way to destroy a potential happy marriage, ruin someone’s life or destroy a friendship. For some people, marriage isn’t touchy-feely emotions, it’s a serious business arrangement and the decision of a lifetime. The little details matter a lot.