Ever since Siri appeared as a regular feature on the iPhone, certain young children — and, let’s face it, some of their parents — have spent hours chatting up the virtual assistant, curious about the details of her humanoid back story.

Siri, where do you live? Siri, do you have a boyfriend? Siri, how old are you?

At a time when grown-ups can use voice commands to find restaurants, change channels on their TVs or get directions, it seems logical that children would now expect devices to understand their speech and respond in kind.