Did that dog just talk?

Has anyone ever noticed that no one really comments in all of the incarnations of scooby-doo that the dog can talk? You would think a talking dog that helps to solve mysteries would be a big deal in the world of Scooby-Doo. It's weird that only very rarely does anyone bring up how bizarre this is even though he sounds like he has a severe speech impediment. Either talking animals are common in the world of scooby-doo or they are very accepting of something very strange. Perhaps that is why people dress up like ghosts and monsters in order to commit crimes they just assume people will think that the supernatural is real and that those beings are committing crimes for reasons unknown. What a weird place to live talking dogs, teenagers that run around solving mysteries with little to no parental supervision, and criminals that have very strange wardrobes.