Sony's Qrio robot attending nursery school in California:

TOKYO — Qrio, a humanoid robot developed by a Sony Intelligence Dynamics Laboratories Inc has been attending a nursery school in California since March to play with children up to 2 years of age in an experiment to help develop a robot that can "live in harmony with humans in the future."

Qrio spends time each day with more than 10 toddlers at the nursery school located in San Diego. Qrio is always accompanied by a researcher, who is in charge of making sure everything goes smoothly. While the children were at first apprehensive about Qrio, they now dance with it and help it get up when it falls. "The children think of Qrio as a feeble younger brother," researcher Fumihide Tanaka said. (Kyodo News)

The Sidney Morning Herald has also a paper about it:

Qrio is always accompanied by a researcher, who is in charge of making sure everything goes smoothly.

While the children were apprehensive at first about the automatically moving Qrio, they became fully used to it in about a month. They now dance with Qrio and help it get up when it falls. (...) Based on observations over the past month, Mr Tanaka said he believes a robot needs to have two contradictory functions to be able to live in harmony with humans - one for making "timely responses to human approaches" and the other for showing "unexpected, accidental moves".

He said a robot should have the two functions in a well-balanced manner.