Most Cubans live in very poor conditions with no means to improve their lives because of low wages and high cost of living (by Cuban standards, tourists will find it cheap so that should show you how little money they make). Also, government oppression against those who speak up is a great deterrent to changing the current socio/economic situation. You talk about levels of education like a grandiose achievement, it is, but to what end? there are many Cuban doctors that cannot feed their families with their state provided salaries and have to resort to illegal means. or defect to other countries where their education is not valued and have to start from near zero. homelessness in Cuba is not reported because it goes against the image the government wants to portray. so the statement "Millions of children will sleep on the streets tonight. None of them is Cuban." is only supported by the state-ran media and it's very inaccurate.