This Economist article is not about the perils of learning English. It’s about the perils of learning bad English. Which… duh?
Teaching children in English is fine if that is what they speak at home and their parents are fluent in it. But that is not the case in most public and low-cost private schools. Children are taught in a language they don’t understand by teachers whose English is poor. The children learn neither English nor anything else.
The perils of learning in English
Execution is everything.