I would suggest you study the fallibility of biometrics and the associated problems of incorrect identification before looking at dual or multiple indentities.

I would suggest you study the fallibility of biometrics and the associated problems of incorrect identification before looking at dual or multiple indentities. There's a wealth of information on Rethink Aadhaar as well as Scroll's Identity project. So far, the corecion on having an Aadhaar number has resulted in millions of people not getting their entitlements and many also dying because of that. On the other hand, corruption and fraud, like quantity fraud, have nothing to do with identifying genuine beneficiaries. If anything, the coercion of Aadhaar has made it easier for middle-persons to steal more, even by claiming that a genuine verification of identity hasn't worked and hence the person is not entitled to food (which these people then steal). If one is looking at solving problems of theft, there are other bigger places to look at and plug "leaks" instead of oppressing the poorest of the poor. Biometrics, unlike passwords, cannot be replaced or changed if leaked. And people leave their fingerprints in many places, and iris scans have been easily and trivially captured with photos. [3] The system used in India is the actual biometrics of the person that doesn't allow any kind of replacement (there are ways to create variable biometrics). Error rates of biometrics are also too high to ignore on a population the size of India. In environments with a smaller number of people, biometrics may help in uniquely identifying people. [1]: https://rethinkaadhaar.in https://rethinkaadhaar.in [2]: https://scroll.in/topic/38792/identity-project https://scroll.in/topic/38792/identity-project [3]:https://www.theregister.co.uk/2014/12/29/german_minister_fingered_as_hackers_steal_her_thumbprint_from_a_photo/ https://www.theregister.co.uk/2014/12/29/german_minister_fin...