90% of your usage on your phone is banking apps or NFC payments? That seems hard to believe.
That's pretty much my usage pattern too, including some group texting, the occasional call and sometimes taking photos/videos. Otherwise my phone pretty much stays in my pocket or on my table the entire day. What are you using your phone for that makes that so unbelievable?
I don't know if it is generational or regional or what, but there is a solid segment of people that live in very close contact with their bank.