Like the article mentions, it is rather creepy what companies can use that data for. But, more importantly, I think, is the fact that those kids are asking these machines those life questions, rather than their parent. It's great that the kid is doing independant research, but there's so much bonding and chances for deep discussions when kids ask things like "why is the sky blue." And, parents learn a lot, too, when they
answer those sorts of questions.
When my son wants to know how a volcano works, I might load a youtube that helps explain it, but I also watch it with him so that I can learn about the subject more deeply, and answer questions and fill in holes in his knowledge. I'm there to pause the
video when he seems confused, to replay things for him, to answer his spoken and unspoken questions. A computer can't do that.