Balinese and Indonesian are the most widely spoken languages in Bali, and like most Indonesians, the vast majority of Balinese people are bilingual or trilingual. There are several indigenous Balinese languages, but most Balinese can also use the most widely spoken option: modern common Balinese. The usage of different Balinese languages was traditionally determined by the Balinese caste system and by clan membership, but this tradition is diminishing.
English is a common third language (and the primary foreign language) of many Balinese, owing to the requirements of the large tourism industry. Staff working in Balis tourist centres are often, by necessity, multilingual to some degree, speaking as many as 8 or 9 different languages to an often surprising level of competence.
