Why did Plutarch travel to Rome several times?

Plutarch traveled to Rome several times primarily to fulfill his public duties. During these visits, he engaged in various activities, most notably lecturing on philosophy.12

Beyond his professional obligations, these trips allowed him to build a network of influential acquaintances, including many friends and potentially the emperors Trajan and Hadrian. His connections in Rome were significant enough that he adopted the nomen of his friend, the Roman consul Lucius Mestrius Florus, upon obtaining Roman citizenship.2