When I was about ten, there were several ethnic groups in my small Massachusetts town that had their own language schools after the public school hours were over. So far as I know, there are none of them left. The Spanish question is obviously different, mostly because of the large number of Hispanics already here and the constant additional immigration. But I suspect that the advantages of fluency in English will make the next generation of Hispanics less likely to regard Spanish as their preferred language.At present only low level jobs are available to anyone not fluent in English. Hispanics readily qualify for the better jobs, but only by being fluent in English. That is not likely to change.