The problem with this is the same as with insurance. Apart from insurance and employment, there are other areas where knowledge of adverse results of genetic tests could give rise to threats of discrimination, some of them quite irrational but serious. A person diagnosed with a late onset condition might be denied assistance to adopt a child although the risks of the onset of the inherited condition are such that they would probably not impede the individual's capacity to support and raise the child. In some societies, knowledge that an individual is the carrier of a genetic condition could affect that individual's prospects of marriage. In all societies, the grief, loss of hope and potential for suicides which can attend premature, unnecessary and unsupported communication of genetic information argues strongly for protecting the individual from such dangers.
Some scientists believe that sexual orientation is, at least partly, genetically determined.
It might help by proving that something so innate is determined naturally and is not defiantly chosen to flout society's moral rules. But out of fear or hatred of difference, it might lead to demands for destruction of foetuses showing this propensity. Just as now, in many countries, a foetus with genetic predispositions to intellectual disability is destroyed. The diversity of the human gene pool has been one of the principal causes of humanity's strength and survival. The advance of genetic testing will therefore present fundamental challenges to humanity.