OP said "there are many people for whom English is not their first language" I simply have to say this, then I'll stop with my anecdotes!
While going round schools, some of the highest standards in written English, in handwriting, spelling, grammar and content were in schools with Asian children. In particular there was one school in a very run down area where there was frequent serious crime.
I never forgot reading these children's reports of their visits to Bangladesh. There were no mistakes, the writing was beautiful, the descriptions were very interesting and the pieces were very long. I told them I was extremely impressed and asked why they were so good. They looked puzzled! For them, aiming to do do well was normal. None of the children spoke English at home with their family.