yeah, it's the same everywhere... this is the prussian indoctrination child prisons called schools, and why it's mandatory and government tries to control everything about all private institutions
some ethnic groups refused to go along with it though, it's pretty cool... like in romania and serbia there is a whole culture of ethnic russians who still speak russian before the late tsarist and communist era, and they are politically strong enough that serbian government buildings have to have signs written in their language, they call them "Russines"... there is many of these kinds of cultures around, Amish are another, it can be deeply intertwined with religion too, and i'd guess that Russines are also strict orthodox