Following is just a snip. Added emphasis is mine. In USA, enormous differences in children's access to quality in education including what is best referred to as "opportunities to learn." These include qualified teachers, sufficient books and libraries, facilities, and so forth--all of these are empirically demonstrated and are not the sum of impressions.
"Finland's primary education system has been the envy of the Western world ever since the country's 15-year-olds began acing international literacy, mathematics and science assessment tests several years ago."
Finnish children do not begin primary school until they are seven years old. But from the age of eight months, all children have access to free, full-day daycare and kindergarten. Finland has had universal access to daycare in place since 1990, and of all preschool since 1996. Primary-school teachers all have master's degrees, and the profession is one of the most revered in Finnish society."