In our society system now before couples come together their do go for test for genotypes and so on and most times these test comes out negatively affecting them were by the man might be AS and the woman AS too and the result will aromatically disrupt the marriage
But back then our fore father's don't have time to check all this things and there were happily married and giving birth to numerous healthy children is it that things have changed since then or what's wrong your opinions is recommended
Our climate is changing and you should understand that our planet isn't as healthy as it was before because of man-made technologies that is affecting our body system, the air we breathe now isn't as clean as the air our forefathers were breathing. However, genotype existed in the olden days too but it wasn't as popular as it is now because there was no Internet to pass it round to everyone as we now see everything happening to the next person in the internet and it will look like it hasn't been existing before now. Our forefathers gave child birth to healthy kids and they also gave birth to unhealthy kids as well so revealing genotype has never been the problem but it has saved most marriages from bringing a sickle cell child to suffer pain from the ignorance of their parents.