Disppearing languages is the worse humanitan problem. When disppearing languages, disppearing a culture, that never it's going to exist.
I think the protection languatge is a complicity the all people: Gouverment and citizens. It's very necessary to do a campanign to increase the love for a minority language. For this, it's very important that it studies to the school and in all levels. And amny more important is the parents speaks with minoraty language when speak with your sons.
The Aranes language is a minority language that only speaks in Aran Valley and Catalonia Generalitat has a special roules for to preserve the Aranes language