Well think about it. Courts are all in English, the documents that founded this country, the laws the govern respective areas etc. 30 states have already made English their official language. Imagine if this gets more out of hand the problems with business/courts/or even translating current laws and regulations to mean the same thing in multiple languages. Even though government may use other languages to be legally binding official it must act or communicate in the English language. Im not saying its bad to know multiple languages I am just saying for a lot of reasons it is good to have a national language that dominates legally and if you want to understand the countries rules and regulations you must know it and not have a driving test available in 12 different languages...