When can a boy start keeping ramdan fast?

A boy can start keeping Ramadan fast at the age of puberty, which typically occurs between 9 and 15 years, depending on individual development. However, many families encourage children to practice fasting at a younger age, often allowing them to fast for part of the day or on weekends to help them gradually adjust. It's important for parents to consider the child's health and readiness when deciding to start fasting.