First of all, it needs to be clear that not all men don't like their wives dancing, so this is not a universally applicable rule. However, some men may feel uncomfortable or worried about their wives dancing for the following reasons:

1. Worried about his wife's safety: In some cases, men may worry that his wife may be physically violated or harassed while dancing. Especially in some frenzied environments, men may feel uneasy or nervous because they don't want to see their wives touched or surrounded by strangers.

2. Self-esteem and possessiveness: A man may regard his wife as a part of himself and have a certain possessiveness. When a wife dances in public, it may make men feel that their ownership has been violated, especially in the presence of other men.

3. Worried about the wife's attention and feelings: In the process of dancing, people are usually immersed in music and dancing, which may worry some men because they don't want their wives' attention to be attracted by other men. In addition, they may also worry that their wives will have emotional connection with others during the dance, which will affect the relationship between husband and wife.

4. The influence of social concept: In some societies, dancing is regarded as a disgraceful occupation, and female dancers are considered immoral. This concept may lead people to think that a wife should not marry a woman with a dance background, because it may be regarded as the misfortune of family and society.

It should be emphasized that these are only some possible reasons and are not applicable to all situations. Everyone's situation and ideas may be different, so this issue needs to be understood and considered individually.