Why did Roman aristocrats appoint Plotinus as guardian of their children?

Roman aristocrats appointed the philosopher Plotinus as guardian of their children because of his excellent reputation and his demonstrated integrity in practical affairs. He was known for his gentle nature, his ability to act as a fair arbitrator in disputes, and his capacity to remain attentive to the needs of others while maintaining his own inward focus.

Because he was regarded as a man who could balance spiritual contemplation with earthly responsibilities, his friends trusted him to conscientiously fulfill his obligations under Roman law. As a guardian, he took his duties seriously, actively overseeing the education and property of the young people entrusted to his care. His home was frequently filled with these children, and he was noted for being "present at once to himself and others," remaining available to all who sought his help or guidance.1