VM, they have diffrent cultures. In Russia Баба-Яга, Кощей, Иван-царевич, "на дворе трава, на траве дрова" etc. are the same in Smolensk and Vladivostok. The folklore, superstitions, kid's games and even pronouncation more or less the same in Russia e.g. I cannot hear the diffrence between Saratov's, Moskow's and Smolensk's pronouncation. Well, maybe you did not read сказы Бажова and you do not know where Полевской is and who is Данила-мастер, but I'm sure if I say "маленький мальчик нашёл пулемёт" you can finish this phrase.