> learn all the other subjects they don’t love to do in their spare tims
One effect of HE is that kids are more willing to learn and enjoy learning in general more, and develop greater motivation and self-discipline.
> Presumably the parents also have things to do when the kids are in school.
HE does not rely on teaching the hours schools do - it takes far less time to learn in other ways than it does to do the same in a classroom. I generally spent less time on HE than many parents do on getting their kids ready for school, and getting them there are back, etc.
HE is not all (or even mostly) done by parents tutoring kids either. Self teaching, classes, tutors - whatever works for a particular time.
I think parents should spend more time with kids than most do. This is why I am an advocate for requiring (by law) more family friendly working hours and conditions AND of greater involvement of fathers (which needs both social change and legal change) rather than raising children being a female occupation by default.
socialization