Current pet peeves:
“Toe the line” not “Tow” Comes from putting your toe on the line as in a race.
Leaving out the “of” - as in, “A couple folks were telling me....”
Lightening for lightning.
Pronouncing shrimp as “srimp” or “strimp”
Pronouncing sherbet as “sher bert”
Stress causes cancer. Give up sweating that there’s folks who aren’t well educated in our society. Generally it’s those who aren’t inquisitive. I can’t think of any way to increase their inquisitiveness. They’ll muddle through it without knowing that they occasionally make mistakes, as we all do.