I suppose if you use MCCC you can have child and teen Sims quit school. I do this for my 18th century Ancestral save. The girls didn't attend school in the 1700s per se, unless they went to Dame School. Or they had Tutors in the home for their limited education. Mostly just the boys went to school. I cheat up their skills and keep the females home, so they can help around the farmstead and do the stuff girls were encouraged to do in those times. So glad we now have knitting, and cross-stitching. :)
They can still use the Books to do homework. But you may have to cheat their skills.