Amazon Alexa: is it friends with your kids?

The tech giants are racing to get digital assistants into our homes - the Amazon Echo Dot currently has a 40% discount during Amazon Prime Day - but debate rages over whether they are suitable for children. There have certainly been teething problems. Toy giant Mattel abandoned its "AI babysitter", Aristotle, last year following privacy concerns. And music streaming service Spotify is currently testing a way of filtering out songs with explicit lyrics following complaints from parents that family-friendly versions of tracks did not play by default when requested on smart speakers. Amazon Echo meanwhile added a feature to encourage children to be more polite to it following concerns that the abrupt way in which people talk to it was teaching children to be rude.