The Sims 4 has less advanced genetics than previous Sims games?

I've played all four sims games and the sims 2 has by far the best genetics. The game actually remembers if they are born with a certain hair color. I wish the genetics worked better in the sims 4 where it has recessive and dominant genes and the game passes these genetics down through the generations but not with just eye color, but with beauty marks, teeth, and so on. There is so much they could improve upon.