IIRC in the early 1900s, coercive methods were used to stop children speaking their native regional languages, a lot of it in school.
In my region of Brittany (France) the most famous example that was on posters detailing good manners would say : "Il est interdit de parler breton et de cracher par terre" meaning "It's forbidden to speak Breton and to spit on the ground", placing both on the same level.
In my region of Brittany (France) the most famous example that was on posters detailing good manners would say : "Il est interdit de parler breton et de cracher par terre" meaning "It's forbidden to speak Breton and to spit on the ground", placing both on the same level.