Now, the complete individual genome can be described by Complete Genomics for several $hundreds or a $thousand or so, and it takes only a few weeks. completegenomics.com
23andMe does a comparable job for only $100. 23andme.com Find family tree information, plenty of genetic issues and where your DNA came from geographically [approximately]
Human identity is a big deal and becoming more important. Until the last couple of centuries, people were serfs, slaves or owned them at various levels of power. Citizens have been and still are mere state chattels with no ownership rights of their country other than as an electoral unit [if that lucky]. Tradable Citizenship here: mqurice.blogspot.com
To properly identify people, various biological markers can be used, such as iris, fingerprint, retina, palm veins, facial recognition, signature, PIN, password, trick questions. DNA is a rock solid identifier built into every cell. If somebody loses their eyes, fingerprints, speech, memory, hands, they can still be identified by DNA [of course the situation would be grim if they lost all that but no doubt people have done].
If Tradable Citizenship was part of personal property, it would need to be linked correctly to individuals.
There are medical and other matters which are helped by DNA knowledge too. Finding family members would involve no guesswork.
Human quality control is a badly handled process which at present is left to the eugenics process run by women. They are doing a reasonable job, eliminating millions of males from the reproductive process, but they could do with some facts to help them. DNA information would help them eliminate hidden genes. There are 6 billion people so there's a lot of DNA dross that can be left to die on the vine and there would still be huge numbers of higher quality people to carry on.
With genetic engineering and genetic selection, the process could be accelerated. Women could tick the boxes they want their babies to have - including intelligence, benign nature, and the swarms of other variables they would want to select. They might have a pretty good bloke and just need to choose one of 5 zygotes to ensure they get the best one. Or clip the right DNA right in alongside the other components which were "naturally" selected.
Good information will be crucial. Complete Genomics could supply it.
Women are spending tens of $thousands on fertility treatment and they fear genetic and other disorders. They will be happy to add some quality control to their current guesswork, spend and hope.
We could use a LOT more Flynn Effect and general human quality improvement. It's too late for me, but those due to be born in the next decade or three should not be subject to the whims of DNA lottery and disaster. Nature eliminates random mutations by cruel acts of destruction. 99.9999999% of DNA attempts end in failure. Women have done a lot of selection to improve the species, and males are somewhat selective but they could do with some help.