Will Aadhaar give you a second identity so you can keep your activities separate? After all, Google has no problem letting you login with multiple accounts simultaneously. But Aadhaar? Not. A. Chance. This expectation is considered fraud under Aadhaar. The entire humongous biometric system is explicitly designed to prevent you from doing this.
…fully. What is Aadhaar if everyone has a slightly different understanding of how it should be used? This chameleon-like nature, where the same entity appears differently to different actors depending on how they encounter it, is the source of much angst around Aadhaar.