Does this only affect the Kazakh language or also the Russian language they speak there? I know a small handful of people from Kazakhstan, who identify as "Kazakh" nationally but as "Russian" ethnically, and they only speak Russian (+ English). The general response about Kazakh the language I remember is that they learned it at school, but as they lived in a heavily Russian speaking area they just never cared much about Kazakh and instead focused more on English when they got the chance.