For quite a long time, pretty much as long as what can be called "primary school" has existed, pretty much everywhere in the world, students were not just taught to read, write and things like mathematics, history, geography and other theoretical stuff, but a quite big portion of the curriculum was dedicated to teaching them practical skills: How to cook, how to do woodwork, how to repair stuff at home, how to sew a button or a torn cloth, and so on and so forth. This was very common in the vast majority of schools up to some time in the 1970's or 1980's, give or take, depending on the country. In fact, it's still the case in some countries, although perhaps to lesser extents than it was in the past. Then something happened in many countries. There formed this strange mentality that teaching such practical everyday skills does not belong to school. That primary schools are nothing but preparation for high school and university, and you don't need to know how...