The Purpose of This Evaluation:

Help You Become Confident

If you travel to areas that do not speak your language then you know n a very short time that not being able to communicate makes things more difficult. 

Trying to make sure you get to the right gate for your flight.  Answering questions at immigration.  taking taxis and talking to the hotel staff.  Ordering food. 

Being able to speak English has another important advantage because many countries train to speak that to all foreigners.   

Many business classes training to work with foreigners say they can not understand people when they speak English and cant help them very well,