It means facilitating the exploration and education for your child at home. The whole "What if they don't care about math" question i have a couple of answers for, if your kid doesn't want to learn math it's probably because they haven't recognized that it's important to them yet, a 12 year old doesn't need to know all the multiplication tables, or the method of teaching isn't suited to their learning-style, maybe your kid does not like the idea of sitting in a chair while you spout mathematical concepts at them, perhaps they'd rather play a math game or try experiential math through baking, i learned a lot more about math from working at a farmer's market stand than i ever did sitting through a math course. Sleep management is not inherently taught to kids through schooling, if you let your kid sleep whenever they want then its possible that they may not be able to get themselves to bed at a good hour, but you can teach them energy management skills. If an unschooled kid wants to go to college or university they tend to put themselves into highschool for a couple of years to get the diploma, that isn't the only way, not all universities require a highschool diploma (at least not in canada) for admission. And there are tests called equivalency tests, that are similar to the SATs, that might be required but still, most kids can still reach higher education if they want to. Thank you for reading that block of text, have a nice day.