Nobody in this family is looking out for this girl.
One of the drawbacks of homeschooling is that there are very few, if any, non-family adults looking out for the well-being of homeschooled children. They might have some at their church or in extracurricular activities, but not the kinds of adults you see five times a week, like a teacher. You could argue that the same applies to public schools, but at least kids in public schools are not tasked with caring for a child all day, every day, instead of receiving an education.
Thousands of homeschooled kids across the world get an extensive and comprehensive education. Their parents are not the ones who need to be checked on, but there are a great many kids for whom «homeschooling» means getting absolutely no education because their parents are too lazy to exert the effort to teach them themselves or enroll them in school. Children in these circumstances might spend all day playing video games because they haven’t been given any tasks to do, or the opposite could be true. They could be tasked with a myriad of duties that are totally age-inappropriate, such as caring for their younger siblings or their older siblings’ kids, despite being children themselves.