She shouldn’t feel bad. I’ve met high school graduates who don’t know the difference between lose, and loose. Don’t know the difference between there, their, and they’re. And can’t do simple math in their heads.
And that was here on FR. LOL
I have one better. A college graduate history major who was teaching history was asked the years of the American Civil War. He said, “1897?” This is a true answer.
I’ve met college graduates who reflect just what you’ve stated about high school graduates.