I met a couple in Vanuatu - one of the world’s most language dense nations - whose mother tongues were mutually unintelligible, so they communicated using the country’s official language, Bislama. A lot of bilingual people don’t speak English. Plenty of Eastern Europeans don’t speak English (unpopular during communist rule) but speak say German or Russian as well as Serbocroatian or whatever.
I met a couple in Vanuatu - one of the world’s most language dense nations - whose mother tongues were mutually unintelligible, so they communicated using the country’s official language, Bislama. A lot of bilingual people don’t speak English. Plenty of Eastern Europeans don’t speak English (unpopular during communist rule) but speak say German or Russian as well as Serbocroatian or whatever.