Why would Sri Lanka ever ask our peoples to give up our distinct and unique native languages?

i somewhat know how you feel. people from all over the U.S. hate the way Southerners speak. It is a unique accent and now our schools try to 'teach the students how to speak properly'. What alot of people don't realize is that we southerners don't always use words to communicate. we use 'sounds' and body language together to say certain things. It's how we are made. I refuse to change. I'm proud of my Southern heritage. If folks don't like it, they can leave the area!!!