Many people treat kids like inferior beings, using "cute" voice, not giving them a chance to say their word, make a decision and such. Do you think such behavior might bring harm to the development of their personality, and they should be instead treated like adults, but just less experienced, so with understanding and patience?
Kids are kids and they should be treated as kids and nothing more or less, Being an adult is a privilege and once they attain that status of adulthood or start behaving as adults, thats when we will treat them as adults.