Encouraging people to only speak in their native language and not learn ours (English) is trapping them in low pay jobs. 

Sad any person would do that on purpose. Yet that is exactly this post I am answering right now. 

 Even Walmartprevents their workers from talking in any language other than English now if the employees are on the floor. Breakroom is fine.



---
Learning English can help immigrants survive – The Denver Post
http://www.denverpost.com/2013/03/08/learning-english-can-help-immigrants-survive/