Can we restrict an user to a specific locale ?

[LeoGeneret]

Hello !

Scenario :
I have 2 users and 2 locales (EN, FR).
I have a Post collection with localized fields, but can I achieve to restrict user to edit only their attributed locale ?
-> The FR user could not edit the EN posts.

I thought about duplicate a post for each locale, add a locale field in users collection and in the post collection, and filter posts by the current user's locale field.

Any ideas about this ? Thanks in advance