1. Climate: In warmer climates, boys may be allowed to wear shorts for a longer period of time compared to colder regions, where they may transition to trousers earlier.
2. School dress code: Individual schools typically have their own dress codes that specify the permitted clothing for students, including the appropriate age for boys to switch from shorts to trousers. These dress codes are usually based on factors such as modesty, comfort, practicality, and uniformity.
3. Cultural norms: Some cultures may have specific customs or expectations regarding the appropriate attire for boys in schools. For instance, in certain cultures or religious backgrounds, shorts may be considered inappropriate or disrespectful beyond a certain age.
Considering these factors, it's generally advisable to refer to the specific school's dress code to determine the age at which boys should transition from shorts to trousers as part of their school uniform.