Why did paul study under Gamaliel?

Paul studied under Gamaliel because he was a highly respected Jewish religious leader and teacher known for his expertise in Jewish law. Paul likely sought out Gamaliel to further his education in Jewish theology and law, as well as to deepen his understanding of the Jewish faith. Gamaliel also had a reputation for being tolerant towards different interpretations of the law, which may have appealed to Paul given his later role as a Christian missionary.