In my second to last year of teaching, I had a student who missed over 70 days of school. I forget exactly how many, but it was more than 70. There are only 180 days in a school year, so that was about 40% of the school year that she missed. Absolutely nothing was done because the child wasn't failing. She was pretty close, but she wasn't failing and she wasn't a behavior problem so no one wanted to do anything about it. I begged administrators to take notice but no one would.
Apparently she's not the only one.
One year ago: Overly Protective
Four years ago: Countdown