[emile]

All the time I think of how the world of English will be decades later when all the millions of ESL learners we teach today will be ESL speakers and don't forget, some ESL teachers.

It's interesting, the trend is for 'horizontal' transmission of information and learning. (ie, students learn from friends, peers, internet rather than from parents and teachers.) This is even something that we encourage, but I can definitely see it resulting in 'worse' English.

Anyway, don't worry. Shakespeare would have said the same thing listening to us today.