Only by the rather broad definition used today to label something cultural genocide.

By that definition, pretty much all education systems other than our most modern, "let the child express itself !" type is "cultural genocide" (and even that is debatable), in that they aim to take what is considered to be an "uncivilised" child, and inculcate in it what a culture deems essential to produce a well-educated, well-enculturated adult, and it does so by separating it from its family for most of the day, and often against the parents' will and values. It is called free and compulsory public education though.