4. Speech is a visible entity by which people are judged. Listening to a tape recording is like looking in a mirror. One study showed that 40% of the impression a person makes on a stranger is based on verbal communication skills.
5. Role models/public figures with communication. Very few. When I was a kid, there were several characters in the movies who had speech differences. What characters in the movies had speech differences during that time (1940s!)?
6. Donald Duck, Daffy Duck, Sylvester the cat, Tweety Bird, Porky Pig, Elmer Fudd, to name a few.