I'm all in for technological progress and advanced medicine but how long before Gattaca type scenarios become real? Will companies start screening candidate emp

I'm all in for technological progress and advanced medicine but how long before Gattaca type scenarios become real? Will companies start screening candidate employees? will this split the world in classes of good genes and bad genes? how about dating? will you future wife to be check your genome before saying YES?? its a future the scares me.