Of course, you already know this since you want a girl who is a "blank sheet of paper" so that you can program her to do your bidding.
Any man wants a girl who yet did not learn to be mercantile or otherwise perverted by the society. Who believes in love. Who did not have negative experience with other men.
For whom being with a man is something special, not what she did 100 times already.
This does not have anything connected to physiology.

Unfortunately you hardly can find a virgin at age above 15 in Russia. So once you passed 18 you have virtually no legal chance to mate a virgin. This means that the best girls pass to school hooligans who think about sex, not about learning. Good boys who want to complete study in university first only can expect to get the remainder: ugly girls whom no school hooligan liked, divorced, abandoned, with children etc.

This system puts bad boys in preferential position and encourages sex in school rather than learning.