There are a number of possible reasons why a man does not want children after marriage, and here are some possible reasons:
1.Men may not have particular expectations or interests in having children. Everyone has their own lifestyle and values, and some may be more focused on personal growth, career development, or personal interests than having children. This doesn't mean they don't care about their families or aren't willing to take responsibility, it's just that they may be more inclined to live a different life.
2.Men may be concerned that becoming a father will have a negative impact on their career advancement. Having a child takes a lot of time and effort, and some people worry that it will adversely affect their career progression. For example, they may worry that taking maternity leave will cost them missing out on important job opportunities or promotions.
3.Financial pressure: Having and raising a child requires a significant investment of time and money. If men are experiencing financial difficulties or stress, they may choose not to have children in order to avoid adding stress to their lives.
4.Health problems: Some men may not be able to have children due to health problems or medical reasons. In such cases, they may choose not to have children in order to avoid unnecessary stress and distress for the family.
5.Personal choice: Some people may consider not having children to be a lifestyle choice, and they may prefer a free, independent, or self-actualized lifestyle rather than being tied down by children.
In conclusion, there may be many reasons why a man does not want children after marriage, which needs to be judged on a case-by-case basis. Everyone has their own lifestyle and values, and their choices and decisions should be respected.