Whether or not it's considered weird for people to live alone as adults depends on cultural norms, individual preferences, and various factors.
Living alone as an adult is a lifestyle choice that has become increasingly common in many parts of the world. Some people prefer living alone because it provides them with independence, privacy, and the freedom to make their own decisions without the need to compromise with others. It can also be a time of self-discovery and personal growth.
On the other hand, in some cultures or societies, living alone might be less common or less socially accepted. Some individuals might feel societal pressure to live with family or roommates, especially in more collectivist cultures.
Ultimately, whether living alone is perceived as weird or not is subjective and varies from person to person. What's most important is that individuals make choices that align with their values, needs, and preferences, and that they feel content and fulfilled with their living arrangements. As long as someone is happy and comfortable with their living situation, there is no right or wrong way to live as an adult.