Wedding Cravats My Dad Refuses To Wear A Waistcoat And Cravat To My Upcoming Wedding. Any Suggestions?

My dad refuses to wear a waistcoat and cravat to my upcoming wedding. Any suggestions? - wedding cravats

My father absolutely refuses to wear a jacket and tie to my wedding. It has never been a habit, and the person will feel stupid, a fraud. I desperately want to use when I'm gone. The only other person that becomes a friend, his best man and our 2 year old son.
Has anyone any idea how I can convince me to wear it, only 9 hours!