I didn't say that. Many of the "native" teachers were in fact trained in colleges which did not teach the tongue of the majority of the population. It happened in Ireland and I have no doubt the same thing happened in many other countries. English became the accepted language and many parents had little option but to go along with that fact.In passsing (with regard to Ireland) the whole subject of the decline of the Irish language is covered in depth in the book "Irish Dialects and Irish-Speaking Districts" by Brian O Cuiv published in 1980.