Amazing to see that in the late Victorian times the secondary children were educated together including doing the same subjects and then suddenly everything changed which was down to the parents and inspectors!
Schools were originally only for the higher end of society, hence Latin etc. It was when schools were opened up more for "ordinary" people that they started being "dumbed down" to include everyday tasks such as cooking, bed making, etc - the first signs of taking away basic life-skills from their parents.
We have an old "free grammar school" building in our tiny village going back to the 17th century. It's history is fascinating. It provided a free education in the classics of Latin and Greek, science, etc financed by local landowner endowments. But, it also provided a "paid for" education in the 3Rs. The logic behind that was that it was down to parents to teach the 3Rs, domestic and trades skills, and if parents couldn't do it themselves, they had to pay for the school to do it, though it was a nominal/affordable amount.