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?
They should be treated accordingly. Kids are new to things so it should be the adults responsibilities to guide them through the years until they are at their right age to let them decide for themselves. But for now, they should be taken care of and love so that when they grow up they will know how to do the same to others.