"The official language, French, is the native language of less than 1% of the population, but it is widely spoken by younger speakers, who learn it to a near-native level in school. Around 30% of the population has Malagasy as its native language, with about one-third of the villages of Mayotte being Malagasy-speaking. Shimaore and the other dialects of Comorian are the native language of approximately 70% of the population, and Shimaore is widely spoken by native Malagasy speakers. Shimaore has traditionally been the language of communication between Shimaore speakers and Malagasy speakers, although this tendency is under increasing pressure from French.... young people are using less and less Shimaore and more
and more French in their daily interactions.

Codeswitching occurs a great deal among younger speakers who master both Shimaore and French."