There are a number of reasons why most girls rarely received informal education in early civilization. These reasons include:

• Gender roles: In many early civilizations, girls were expected to take on domestic roles, such as cooking, cleaning, and childcare. This meant that they did not have the same opportunities as boys to receive informal education, which was often focused on academic subjects or skills that were seen as more relevant to men.
• Cultural norms: In some early civilizations, there were cultural norms that discouraged girls from receiving education. For example, in some cultures, it was believed that girls were not as intelligent as boys, or that they should not be exposed to certain types of knowledge.
• Economic factors: In some early civilizations, families could not afford to send their daughters to school. This was especially true in rural areas, where there were few schools and the cost of education was high.
• Access: In some early civilizations, girls simply did not have access to informal education. This was often due to geographic factors, such as the lack of schools in rural areas, or social factors, such as the fact that girls were not allowed to leave their homes without an escort.

These factors have changed over time, and today, girls have much more access to informal education than they did in the past. However, there are still some countries where girls are denied access to education, and even in countries where education is available, girls may still face cultural or economic barriers that prevent them from attending school.

It is important to note that not all early civilizations denied girls access to informal education. In some cultures, girls were encouraged to learn, and they received informal education from their mothers, grandmothers, or other female relatives. In these cultures, girls learned about cooking, sewing, childcare, and other domestic skills. They also learned about the history and culture of their people, and they were sometimes taught to read and write.

Overall, the reasons why most girls rarely received informal education in early civilization are complex and varied. However, it is clear that gender roles, cultural norms, economic factors, and access all played a role in limiting girls’ access to informal education in the past.