I feel the same about our kids and Echo. It definitely was the hit of our xmas 2015 and it is still actively being used by only a few features like music, weather and a (timeout) timer. My son Landon is always repeating himself and saying it louder because Alexa didn’t understand or he is talking to fast. In one way it helps him enunciate better and other ways, as Hunter Walk described in his post, it breeds bad manners. It is early on in the product and have faith the team at Amazon are innovating and building products like Echo for families in mind.