Yeah, no doubt it was entirely socially acceptable at the time but it doesn’t read as any less like a creepy old man rubbing his thighs when he’s going on about the “charming age when no longer a girl and yet not a woman” and comparing them to kittens etc.
Also, I pretty much immediately forgot who every character in those chapters was because those chapters were - to use the parlance of Tolstoy’s time - mad boring.