No, it is not selfish to not want kids. The decision to have children is a deeply personal one, and everyone has the right to make choices about their own life that align with their values, desires, and priorities. Different people have different aspirations and responsibilities, and there's no one-size-fits-all approach to life choices.
People may have various reasons for not wanting children, such as focusing on career goals, concerns about overpopulation, environmental impact, health concerns, financial considerations, or simply not having a strong desire to be a parent. It's essential to respect each individual's decision regarding parenthood and not judge them based on their choices.
It's possible that your brother's reaction could stem from his own beliefs, societal expectations, or personal experiences, but it's important to communicate openly and honestly about your feelings and listen to each other's perspectives. Having a calm and understanding conversation can help clear any misunderstandings and foster a more supportive relationship between you and your brother, even if you have different views on this matter. Remember, your choice to not have children is entirely valid, and you should feel confident in your decision.