Re: I'm puzzled by these attempts.
The NFC chip is there so that one can send any number of photos or contact cards to someone else's phone without having to obtain an email address and enter it or have their phone number and text hem or pair with Bluetooth and make a connection or even switch Bluetooth on. Place the phones near, wait for the warble, carry on and stay within a few metres - sorted.
There are other uses for phone NFCs?