When I had my first voice lesson I was 15 years old. And I had a really good teacher. This is what made all the difference. A good teacher will teach you the technique, but also how to listen to your voice.
The danger is not that a particular class is unfit to govern: every class is unfit to govern.
The drama may be called that part of theatrical art which lends itself most readily to intellectual discussion: what is left is theater.