I carry a mobile phone, as most people do, even though I just as well wear a personal tracking device - any interested party, NSA, CIA, DHS, FBI etc. could at any time pull records for my device and the triangulation data will fix my position to within about a square meter for any given time-stamp.
I've thought it all through, the pros & cons, and decided that for me personally it's a compromise I will need to accept in order to participate fully in the current phase of the 21st century.
Of course the founding principles of cryptoccurrencies call for anonymity and preservation of privacy, and adding 2FA to Prohashing is not going to trigger a fork in any of their blockchains to compromise that integrity
