Language non-binary
Being merely bilingual is not enough in a country with 11 official languages; the average South African uses 2.84 languages. isiZulu is the first language for the most people (11.6 million people), as well as the most common second language (15.7 million people). The least commonly spoken of the national languages are Tshivenda and isiNdebele (1.2 million and 1.7 million respectively). This year, President Ramaphosa added a twelfth official language: Sign Language (used by 0.5% of South Africans).
(https://bit.ly/30RZCun, https://bit.ly/3eh6yp6)