The most common process leading to language death is one in which a community of speakers of one language becomes bilingual with another language, and gradually shifts allegiance to the second language until they cease to use their original, heritage language. This is a process of assimilation which may be voluntary or may be forced upon a population. Speakers of some languages, particularly regional or minority languages, may decide to abandon them based on economic or utilitarian grounds, in favor of languages regarded as having greater utility or prestige.