Not just the 1980's, but the 1880's as well.
My wife's father tells the story of his Uncle coming home from school after having been beat up for speaking Swedish (Minnesota 1915). The edict was then laid down by her Grandfather that only English would be spoken from that day forward. Plus side is the kids all learned English, down side is the ability to speak Swedish was lost.
Downside also was that they probably learned learned English with Swedish accents. But then, without that there would not be a Minnesota Accent today.