This obsession with KYC/OTP appears to have started with Aadhaar. I often find it surprising how callous (and sometimes even proud) people are, over handing over their Aadhaar. It's no wonder everyone wants to get hold of everyone else's Aadhaar.Don't know if this belongs here.
Even if inevitable sometimes, it is not always so. When my kids' school demanded their Aadhaar number a couple of years ago (back when they didn't even have one), I simply gave them a random 12-digit number which made them happy. The next year, when they demanded it again (this time with documentary "proof"), I gave them a copy of my own Aadhaar and they were again happy - they evidently didn't even look at it, and were doing it just because other schools did it.
At one point, we (me and everyone else in the family) kept receiving daily "reminders" from mobile phone providers that said we stand to lose our connections if we don't go through their KYC process before the end of the month/week/whatever (or something along those lines). It's been nearly 2 years since we ignored their messages, and our phones still work. And when the local cable TV/Internet guy, milkman, newspaper vendor or whoever mentions Aadhaar, I simply tell them I don't have one, and they usually don't bat an eyelid.
I did kick myself for unnecessarily handing over my Aadhaar to LIC and for not sticking it to the man when I had a chance, for once.