I believe the answer is Sikhism. Hopefully this helps.
The big difference between Eastern Europe and Western Europe is that Eastern Europe consists of countries that once belonged to the Soviet block, unlike the Western half. Economically, the Western Europe nations are much more advanced than the Eastern Europe nations. Western Europe outputs a lot more cash due to a larger free trade and more open economy as a whole.
They changed it to 2 children and i heard it has to be one girl and one boy but idk dont quote me one this