My daughter is studying Japanese, and one thing I learned from when I was studying German years ago was that as much immersion as possible really helps with retention. My thought was that her iPhone can do double duty for language practice. How can I change Siri to Japanese for her?
Click on the “Settings” app on your home screen. Then, go to GENERAL>SIRI. After you make sure the toggle for Siri is turned on, click on “LANGUAGE” then select JAPANESE from the options listed. That should do it.