Mattel’s Aristotle baby monitor is billed as “the Amazon Echo for kids.” “As millions of American families buy robotic voice assistants to turn off lights, order pizzas and fetch movie times, children are eagerly co-opting the gadgets to settle dinner table disputes, answer homework questions and entertain friends at sleepover parties,” writes Michael S. Rosenwald in the Washington Post. Alexa, how will “know-it-all voice assistants” affect children? Parents see Amazon’s Alex