In the USA, this has been going on for decades in the congs. The parents do it under the guise of shielding their innocent children from the 'wicked system'. Of course, these parents usually enroll their children in some cheap Witness internet homeschool like "Pear Blossom". After graduating from this joke of a school, these adolescents are equipped for wonderful careers such as regular pioneering, burger flipping, and window washing. Some graduates are even accepted to prestigious universities such as Pioneer Service School.
I know firsthand of parents who are high school dropouts themselves that decide to homeschool their children. They leave their adolescent son/daughter home alone to "do their schoolwork" online while both parents leave to work all day. Their 'innocent' JW child spends all day playing videogames, watching porn, and playing with themselves; little schoolwork gets done.
The official line from the Tower Slave International home office is that homeschool is neither promoted nor discouraged; it is a family decision. However, the powers that be have given a wink and a nod to homeschooling. Not once has it been criticized in the publications (how many things can we say that about?) The leaders of this organization know that homeschool (at least the way it's done by JW's) keeps JW kids that much more enslaved, dependent on the org, and less likely to think for themselves. Besides, the more educational & financial options that young people have, the less likely they are to stay in the religion.
Ironically, many homeschooled kids in my area turn 18, get a low-paying fast-food-type job, quickly find a 'worldly' boyfriend or girlfriend, and then fade or are DF'ed, never to set foot in a Kingdom Hell ever again.