What is the passage mainly concerned with?

Superb schools symbolize the modern transformation of Finland, a poor and agrarian nation half a century ago, and today one of the world’s most prosperous, modern and adaptable countries. Finland finishes first in the Program for International Student Assessment (PISA) exams that test 15-year-olds in all of the world’s industrial democracies. Finland also finishes at or near the top in many global comparisons of economic competitiveness: Internet usage, environmental practices and more. Finland, where the modern cell phone was largely invented, has more cell phones per capita than any other nation--nearly 85 per 100 citizens. The high quality of Finnish education depends on the high quality of Finnish teachers. You need to have a college-level degree to run a kindergarten. You need a master’s-level degree to teach at a primary school. Many of the best students want to be teachers. Interestingly, given the overall success of Finnish education and Finns’ pride in it, state spending on schools is actually declining. The number of old people is growing, which is causing a drain on the Finnish welfare state. So there is not enough money for schools. But it is difficult to imagine that Finns would allow their schools to fall very far now that they have achieved such excellence.