> I've never met anybody who believes that the government is solely responsible for educating children
Parents who think it is their responsibility to educate their kids and see the public school as one of the ways to provide that education will do things like show up for parent-teacher conferences, make sure their kids complete their homework, understand what their kids are struggling with, and seek out additional help when it is needed (asking the teacher, using internet resources, etc.). I'm sure there are some teachers who would say that describes everyone in their class, but most of the teachers I've talked to say that such a classroom sounds like a wonderful dream.
> There are parents who just aren't capable of taking a more active role in educating their own children
If someone who didn't graduate adopted a high school age student, then I would see your point. However, kids don't start out in high school. They start out much younger. While I'm sure you can find some very unusual exceptions, a parent should be able to take an active role in their kid's education from the beginning. Maybe by the time the kid gets into high school, some parents aren't going to be able to fully understand the math their kids are doing, but you can still take responsibility for what your kid's education even if you don't fully understand their calculus homework.
Very unusual exceptions? I'd say it's far more common than that - read this story (https://www.nytimes.com/interactive/2014/08/13/us/starbucks-...) and think about how often someone with this schedule is going to make it to parent-teacher meetings. Think about how well the 15% of adult Americans who are functionally illiterate[1] are going to use the internet or help even their elementary school student with homework. To pretend that we're just talking about parents who can't 'fully understand calculus' is just wishing away the problems.
Parents who think it is their responsibility to educate their kids and see the public school as one of the ways to provide that education will do things like show up for parent-teacher conferences, make sure their kids complete their homework, understand what their kids are struggling with, and seek out additional help when it is needed (asking the teacher, using internet resources, etc.). I'm sure there are some teachers who would say that describes everyone in their class, but most of the teachers I've talked to say that such a classroom sounds like a wonderful dream.
> There are parents who just aren't capable of taking a more active role in educating their own children
If someone who didn't graduate adopted a high school age student, then I would see your point. However, kids don't start out in high school. They start out much younger. While I'm sure you can find some very unusual exceptions, a parent should be able to take an active role in their kid's education from the beginning. Maybe by the time the kid gets into high school, some parents aren't going to be able to fully understand the math their kids are doing, but you can still take responsibility for what your kid's education even if you don't fully understand their calculus homework.