I homeschooled a daughter for a year through Key Stage 3 because of emotional difficulties she couldn't handle in her first year at High School. I set up a classroom and we kept timetables and went through schemes of work very successfully. Academically when she rejoined school she was actually ahead of her peers, but I was diligent and conscious of her not falling behind, and we worked hard together. There is however, no compensation for the social interactive development that learners gain from working and growing with their peers.
Now that I am actually in the teaching profession, understanding the domains of learning, and teaching and learning styles, I see that we were actually very lucky to have been so successful. There are many skills involved in pedagogy that JWs with such poor advice from the WTBS can't hope to achieve. Learners should be in the best possible environment to achieve their full potential for life/work. With all its failings, the education system in the UK is excellent and free, so unless there's a very very good reason, it would tragic to take a learner out of it, and especially not to pacify a cult.
Loz x