My fiance believes that he should ask his brother to be his best man because it's suppose to be tradition. I believe it is my fiance's choice to pick whoever he wants as his best man, however, his brother not only did not have him as his best man at his wedding, but is also not reliable, selfish and when I think of the speech he might give all I can think of is AWKWARD. I love his brother but my fiance constantly complains about him because he's a dead beat father of 2 with no job and has inconsistent mood swings because of the crazy medication he takes. I would like to feel confident in the person he chooses as his best man and his brother doesn't make me feel confident since he can hardly take care of himself let alone his kids. My fiance has plenty of other choices for best man and like I said the ONLY reason he is choosing his brother is because he believes its tradition. Is there anything I can say to change his mind? or should I just leave it alone?