The burden of workers having to pick up children at 3pm, and entertain them during ridiculously long school holidays is a big problem for employers.
Additionally, children get bored and are not reaching their full potential. The time that is wasted during each school year could be better spent improving the education, capability, social conscience and responsibility of our future generations.
What better way of curing the ills of the country than by improving the people that live in it, and that can only be done from their early years.