Why people are don't have any aware of English knowledge ? Why?

they do not acquire proficiency in languages or communication skills because the teachers never take their job seriously.  Take for instance the students of zphs and other govt medium schools; their ability to communicate in English is practically zero as the teachers who teach English language make no efforts to impart them with the skills of listening, reading, witting and speaking.  In most cases, the teachers who teach English in non English medium schools are not even qualified to teach the language.  That is why these children never learn to write and speak in English and consequently face serious communication problems when they go for higher studies.