curious Very good considerations. However, they do not take into account certain cultural differences resulting from historical events. Without them, it is difficult to understand the issue of gender differences in some post-communist countries. To put it very simply. Under communism, Central European countries went through a period of social engineering to create a new "classless society". The old social elites - being the carrier of tradition and culture - lost their position and assets (and sometimes their lives). Following the Soviet model, women were encouraged to perform men's jobs (manual in industry or agriculture, but also in state administration, the army or the terror apparatus: secret police, prosecutors, courts). Some professions (doctors, teachers) that used to be predominantly male have become heavily feminised. Non-coeducational schools were liquidated. Differences between women and men were reduced to purely biological issues and the role of a woman as a mother, who was to give birth and raise many new citizens (and work at the same time). Cultural expectations of "proper behavior" by women have largely disappeared, especially in the public sphere, where they have been portrayed as a manifestation of "bourgeois hypocrisy" that differentiates morality by gender. Differences in the upbringing of boys and girls survived mainly at home, but in a limited form. Although communism collapsed over 30 years ago, the societies of Central Europe have been "formatted" to a large extent by this system. Therefore, when @Kaja writes today that Czech girls and boys differ only in having a penis/vagina, she probably means no major differences when it comes to social expectations related to gender.
As for the contemporary business elites of post-communist countries, the vast majority of them were brought up and educated in exactly the same way as the rest of society. They acquired knowledge of Western (business) etiquette only at a later stage of their career. Only their children, educated in the west in private schools, can treat such etiquette as the norm.
