What is the parent supposed to do?
If my (theoretical) 16 year old doesn't want to go to school, how am I supposed to make them? Do I call the police to come to my house, and drag my kid off to school for me? (I genuinely am wondering - what DO parents in states where they could go to court if their kid skips school do?)
I can't see how using the courts to punish families for attendance problems accomplishes anything useful. The system we've got here seems to work just fine without anyone trying to "wake up" parents and/or their kids by bludgeoning them with the law.
I skipped my morning math class through most of Grade 5. My mother was a single parent, working her butt off to provide for me. I was seeing a psychiatrist at the local hospital (free - yay, Canada!). My mum was doing everything she could possibly do, to make sure I got a good education. Is it reasonable to haul her into court, take away custody of me, possibly cause her to lose her job or bankrupt her with lawyers fees? I'm awfully glad none of that happened!
In many (if not most) places in the United States, 16 year olds can drop out (with parent permission), so the child can be withdrawn. Here, homeschool or online school would be options as well. If the child is younger, this could be an opportunity for the parent to get help from social services to get the child to school.
I get what you are saying, but never educating your child is neglectful and should put authorities on the alert. (and if there are true medical reasons, there are hospital/homebound services, online schools, etc) Someone should be looking out for a kid who is missing tons and tons of school, no not 3 days for a Disneyworld trip, but seriously missing.
And I'm awfully glad the courts didn't have to get involved, like they did with your brother, even if it turned out well for him in the end. Things turned out well for me, too, even without summer school or Saturday school.