Why do men kiss women's feet when they get married? What happens if men are neat and don't kiss?

Well, it's the first time I heard you say that, at least I haven't heard of this phenomenon around me. In fact, if there is such a custom in your place, it is entirely possible for both parties to reach a final agreement on this practice through communication. There is no need to do it in some way. As long as both sides are happy, why bother to sum up a problem? I love you.