We're very lucky in philosophy that there's a tradition of literally thousands of years of teaching diverse opinions ... or at least most philosophy professors

We're very lucky in philosophy that there's a tradition of literally thousands of years of teaching diverse opinions ... or at least most philosophy professors think there is. It's arguable whether or not what we do now has much in common with what Plato did. But anyway the culture is there, and is handed down very reliably from generation to generation, in my experience.