The Welsh Language Act 1993 and the Government of Wales Act 1998 provide that the English and Welsh languages be treated on a basis of equality. English is spoken by almost all people in Wales and is the de facto main language. Code-switching is common in all parts of Wales and is known by various terms, though none is recognised by professional linguists. "Wenglish" is the Welsh English language dialect. It has been influenced significantly by Welsh grammar and includes words derived from Welsh. According to John Davies, Wenglish has "been the object of far greater prejudice than anything suffered by Welsh". Northern and western Wales retain many areas where Welsh is spoken as a first language by the majority of the population, and English learnt as a second language. The 2011 Census showed 562,016 people, 19.0% of the Welsh population, were able to speak Welsh, a decrease from the 20.8% returned in the 2001 census. Although monoglotism in young children continues, life-long