Although i share the intuitive reaction of disgust, the last statement "we're not ready for it" made me wonder : knowing the complexity of the genes expression

Although i share the intuitive reaction of disgust, the last statement "we're not ready for it" made me wonder : knowing the complexity of the genes expression problem, is there any point when we'll be able to say we're ready for it ? Another question i wonder : is making a baby with someone else truely something responsible, knowing the number of things that we alter when we combine pretty randomly the DNA of two , sometimes extremely different, people ?