A few days ago, a few students walked into my cabin, as they had an issue with their class presentation. I said the presentation was all right and the root of the problem lay in their English speaking skills ( which were limited )
The real issue is that, youngsters, congregate around people ( friends ) from their own region and so get little opportunity to speak English......and improve, which reminded me of the following story.
France, under Gen.Charles De Gaulle was, tenaciously holding on to their Algerian colony, amidst growing violence and opposition. The Governor General, in Algeria, Jacques Soltes, bitterly complained to De Gaulle, that his friends criticized him for following the General's policies.
De Gaulle, an impatient man, replied with a terse one liner ' Changez vos amis'.
Change you friends.It is the solution to many problems.I could not come up with better advise!