The problem is that every child is an individual but every school has to cater to a certain, and quite large number, of them. Every child has different skills and abilities. Some children love the rules of school, other children hate them and will never learn within those shackles. Some children love arts, others science, others PT and technical skills. There are some who are bad at everything and others who can't decide what it is they like.
Education is the basis for everything else in society.
Other problems disappear if you are educated. If you are educated about health then you have better health. The better educated the population, the greater the increase in economic prosperity. Scotland has always had an excellent reputation for their education system but reports over the last few years have suggested that they are resting on the laurels of past achievements. However, in the past year, they have at least got one thing right.