You're right; I am uneducated.
I write, speak and understand one language, sadly, though whilst on duty in Shanghai recently, I did attempt to learn Mandarin through a professional organization.
One thing I do know, mostly through experience, is that I can make a fool of myself in only one language, whereas you, given you speak many languages, are in a position to make a fool of yourself in many.
English is the international language of aviation.
Now that ICAO has mandated all professionals in critical areas of aviation be measured in and maintain a standard of English Proficiency in order to operate in their capacity as pilot, ATCO etc, you may find this to be the reason your company has mandated you speak English in all areas of the workplace.
I was recently with a company whose Ops Manual stated that 'English is to be used on the flight deck'. They were ahead of their time.
As to why ICAO mandated English Proficiency as a requirement to hold a license to operate in critical areas of aviation, it would appear to be due to the measurable fact that of all incidents and accidents we've endured as an industry, a high percentage continues to be a consequence of a breakdown in communication.
Result: English Proficiency tests for all.
Be glad it wasn't Mandarin Proficiency.
