that crazy pro-natalist fascist couple that's been all over the news lately do this. They pick and choose which of their embryos are the most fit overall, and/or which have blond hair I'm sure, and plan to have as many of them as possible. Seems a shame to go through all that, only to beat your kids in front of a newspaper reporter and give them neuroses that'll likely make them rebel against you, but I'm sure if they can invest in crypto stocks they must be very good at predicting the future right?