Change language for managed users “home”

In my admin account I have the audio and subtitles set to “Spanish” by default. I have two managed users in “home” (children) and for them, in their accounts, the default audio is in English. Is there a way to change the default language in managed accounts? I can’t find the option anywhere. To change the language I have to manually change it to “Spanish” every time a movie or episode is going to be played.

Each [managed] user has their own language preferences.
Use the web app.
“Switch User” to their account.
Visit the language settings of their account(s) and make the changes.

https://support.plex.tv/articles/204985278-account-audio-subtitle-language-settings/

Thanks to your input I have been able to configure the language for managed users. Thank you for your help and your time!